The first thing I do after being reborn is secretly keeping six stunning male models behind my wealthy husband’s back. I seduce them and sleep with them for 999 days to get myself pregnant.

I do all this because in my past life, my husband found out that he had asthenozoospermia and married me because I am known for being fertile. He wants to carry on the family line so that he will have a successor to inherit the family fortune.

I try everything I can to get pregnant, but nothing works.

Conversely, my infertile best friend gives birth to twins and triplets within two years after marrying a 70-year-old man.

When my wealthy husband hears that my best friend is blessed with children, he is immediately captivated.

They get together behind my back and even arrange for someone to run me over with a car when I find out the truth.

After my death, I discover that my best friend has bound herself to the child switch system.

Any child I am impregnated with is transferred into her womb.

My best friend's infertility is transferred to me in return.

When I open my eyes again, I find myself back on the day when my husband married me and brought me home.

I smile happily when I think about all the things that took place in my past life. My best friend wants lots of children, doesn't she? If so, I will make her experience the joy of having 18 babies in one pregnancy!

"You married above your station when you married into the Grayson family. Please remember your duty and give birth to a son who can inherit the family fortune.

"Let's have a trial marriage for two years. If you can successfully get pregnant within that time, I'll marry you officially."

A cold, impassive voice spoke in my ear.

I jolted back to my senses and saw Chase Grayson staring arrogantly at me. He was a wealthy heir.

I had been trapped in a burning car just a second ago, but now I was reborn.

I had come back to the day my husband, Chase, had brought me into his prestigious, wealthy family.

When I remained dazed and silent, my best friend, Willow Rivers, hastily nudged me. She was wearing a bridesmaid's dress.

"Callista, you should feel lucky that you were able to marry into a wealthy family when you come from such a poor background. Why are you hesitating? Are you afraid that you won't be able to get pregnant within that time and that they'll get rid of you?"

I looked up at the sound of Willow's sarcastic voice. She didn't even bother to hide the glee she felt.

In my last life, I had been overjoyed at the prospect of marrying into a wealthy family because I would be able to raise the money for Grandma's operation. I hadn't suspected Willow at all.

My family was known for being fertile.

Starting from my great-great-grandmother, all the women in my family had multiple births. It was common for them to have twins or triplets.

When it was my mother's turn, she had seven children in total. Six of them were sons, while I was the only daughter.

Chase was a wealthy heir who was diagnosed with asthenozoospermia. When he heard about how fertile the women in my family were, he began to court me enthusiastically.

I couldn't help falling for him, and as Grandma needed a huge sum of money for a life-saving operation, I happily agreed to Chase's proposal.

However, Chase did an about-turn at the wedding and suggested having a trial period for our marriage instead.

In order to save Grandma, I had no choice but to agree.

I tried desperately to get pregnant for two years. I had countless ovulation injections and endless bottles of folic acid and traditional medicine.

Two years flew by, but I did not show any signs of pregnancy at all.

Chase felt deceived by me and started to abuse me physically.

At the same time, my best friend Willow gave birth consecutively to twins and triplets after she married a 70-year-old man, even though she had previously been diagnosed as infertile.

Willow became known for having many children, and she soon caught Chase's attention. They started having an affair, and she even became pregnant with his illegitimate child.

When I discovered them, Chase kicked me out of the house and stopped giving me the money I needed every month for Grandma to stay alive.

I tried my best to make him stay. Since I had put in so much effort for the past two years, I begged him to lend me money so that I could save Grandma.

However, Willow was afraid that Chase would relent. She ruthlessly sent someone to run me over with a car.

After I died, I realized that Willow had bound herself to the child switch system.

Any child I became pregnant with would be transferred to her womb. In return, her infertility was transferred to me.

In the end, Willow successfully became pregnant and married into the wealthy Grayson family. She began using her influence to oppress my entire family.

After I was run over, she deliberately brought the pieces of my corpse to the hospital to trigger Grandma, who ended up having a heart attack and dying tragically.

My six older brothers and my parents died one after the other while trying to bring me justice.

When I thought about everything that had happened in my past life, I wanted nothing more than to devour Willow alive.

However, I knew that it was not the time to do so.

I smiled and immediately agreed to Chase's request for a trial period.

"No problem, honey. I'm sure that I'll give birth to an accomplished successor for your family within two years."

Chase asked doubtfully, "You agree? Really?"

I nodded. "Don't worry, honey. I'm confident."

When Chase saw how understanding I was being and how confident I was about getting pregnant, his tone softened. "Don't worry, Callista. If you can give me a son within two years, I'll marry you at once."

Chase slid a ring onto my finger. The diamond on it was as big as a bird's egg.

At the emcee's urging, he closed his eyes and leaned over to kiss me.

There was no trace of happiness on Willow's face, even though she was my bridesmaid. Instead, she was filled with a wild jealousy.

I looked sideways at Willow, who was gritting her teeth, and I sneered inwardly.

As I had expected, Willow could not restrain herself. She rushed forward and smiled as she forced Chase and I apart.

She brushed against Chase with her chest on purpose and almost fell into his arms as she said playfully, "Oh, Mr. Grayson! Why are you in such a rush? You can't kiss the bride so quickly!"

Willow was fairly good-looking; she began to seduce him openly.

However, Chase was a wealthy heir and had dated all kinds of women.

The only thing he was fixated on was having children. He had heard that Willow was infertile due to having had too many abortions, so he had no interest in her at all.

Chase pushed Willow roughly away, and hurt flashed in her eyes.

She didn't blame Chase and held a grudge against me instead.

She pretended to be curious. "Callista, is your family really as fertile as they say? Are you exaggerating? You're going to be kicked out if you aren't able to have children."

Chase heard her and looked doubtfully at me. Willow stared at me, her lip curling in disdain.

I did not panic; I just kept nodding. "My family's fertility has been proven over five generations. Don't worry, I won't let you down. I'm sure I'll have a son very soon!"

I pulled out a pouch right in front of them. It was already filled with ovulation injections and drugs that would increase the chances of pregnancy.

Willow's eyes lit up at once.

Chase took my hand eagerly and said immediately, "Callista, let's forget about the rest of the wedding. Let's go to our room right now and get a son on our first try!"

Willow laughed and took my hand as well as she pushed me toward the marital bedroom.

"Callista, hurry and make a baby with Mr. Grayson. I can't wait to carry your child very soon!"

When I saw how eager they were to make use of me, I scoffed.

In my past life, Chase had pulled out all the stops to court me and marry me, just so that he could use me as a breeding machine.

He knew how damaging it was to my health to have too many ovulation injections, but he forced me to have them every single day. He didn't care how much pain I was in, or that my ovaries ended up irreversibly damaged.

As for Willow, she had taken everything that belonged to me using the system, and she was the reason for the tragic deaths of my entire family.

He was a monster, whilst she was his evil lackey. They had joined forces to squeeze me dry and forced me to my death.

Now that I was reliving my life, I would make them pay the price!

On our wedding night, Willow gave me ovulation injections that were over the prescribed dosage. I felt abdominal pain due to the overdose, but Chase ignored that and took me more than ten times.

The two of them couldn't wait for me to get pregnant. They bought me all kinds of traditional medicine that would aid pregnancy and told me to take care of my health.

In my past life, I had not known that Chase had asthenozoospermia. I had thought that he genuinely liked children, so I had obediently taken all the medicine they gave me no matter how bitter it tasted.

This time, I poured all the medicine into a flowerpot and took out my phone. I arranged for six hot-blooded male models to come.

In my past life, I spent every single day getting injections and taking medicine so that I could get pregnant. Meanwhile, Chase went through an endless string of women behind my back.

He spent his time with all kinds of women during the day and came back at night to try to impregnate me.

Luckily, he was generous and gave me plenty of money, but he didn't bother about anything else.

That was why in this life, he didn't discover what I was doing with the six male models.

During the day, I enjoyed myself thoroughly in bed with the models, who were all full of energy. I complied with Chase at night out of necessity.

I also sent Willow WhatsApp messages to rile her up. The day after that, she married a wealthy 70-year-old man.

Everyone tried to persuade her not to take her own happiness so lightly, but she didn't care. She even announced that she would bear a healthy baby for her husband.

Everyone laughed and said that she was crazy.

However, I knew she needed to get married. If I got pregnant, the fetuses would be transferred to her womb at once.

If she were unmarried, she wouldn't be able to explain who the father of her child was.

She had been planning to seduce Chase at first, but he was always surrounded by beautiful women. Besides, he showed no interest in her at all. She had no choice but to resort to other methods, so she decided on a rich old man who was no longer able to reproduce.

I couldn't be bothered with her tricks. Every day, all I did was visit Grandma and enjoy myself with the male models I was paying for.

Four months later, Chase brought a doctor to examine me.

Willow came because she was nosy.

When Chase heard the doctor say that I wasn't pregnant, his expression turned as black as thunder, and he began cursing at me at once. "I gave you so many ovulation injections! Why is your womb so useless? I married you and spent money on you, but that wasn't so that you could just be a rich housewife!"

When Willow saw him scolding me, she turned up her nose in triumph.

She glanced scornfully at me and rubbed her own stomach with a loving look on her face. She said in a syrupy-sweet tone, "Callista, everyone in your family is so fertile. Why are you the exception?

"My husband is already 70 years old, but I still succeeded in getting pregnant. You, on the other hand, aren't even showing any signs despite all your efforts over such a long period of time."

I looked up. She had only been married to the old man for four months, but her stomach looked as if she were already eight months pregnant.

I suppressed a smile and pretended to look upset as I said, "I don't know what's happening. It's my fault for having such a useless womb!"

Willow became even more gleeful when she saw how defeated I was. She continued to criticize me.

"Pregnancy is also based on luck. Maybe you're just unlucky, unlike me. I think I'm destined to have plenty of children. Mr. Grayson, you and Callista shouldn't be discouraged. I'm sure she'll get pregnant next time!"

Chase was frustrated to see Willow's bulging belly.

He didn't want to admit that he was even less potent than a 70-year-old man, so he pushed all the blame onto me.

"Callista, I gave you so many home remedies for having children. Why is Willow doing better than you? Tell me! Haven't you been taking your medicine diligently?"

I shook my head hastily to deny it.

Chase gave me an ultimatum.

"I'm warning you, Callista. If you still can't get pregnant within the two years of our trial marriage, don't even think about marrying me!"