fertile trait

I had the same thing happen, they both had the trait and still only had single births. I only tried twice though, once should have been enough at least for twins.

A lot of people have this problem. I've never played around with the fertile award, due to the fact I usually don't want twins. I've had a couple sets of twins in my game, never triplets.
Try making sure both parents have it, and during the mom's pregnancy have her watch the kids channel.

To influence gender you can have you mom eat strawberries and listen to pop music for female, or eat carrots and listen to alternative for male.

Kk thanks

You can try with fertility massage if you have Spa Day...
My sim got triplets with fertile trait and fertility massage.

Of course, you have mods for this, you can even choose number of babies - you can find it on Mod the sims

I've always had the male get the fertility trait and that always helps with twins or triplets

How does the fertile trait from the rewards store work? I’ve watched a video before where the sim got a moodlet that said “feeling fertile” but I’ve never seen it in my own game. Both the female and the male have the trait and she’s pregnant so I’m gonna go for tricks and pray that it works. Any tips?

Ok so once in a large generation world i have the husband and wife get pregnant no tricks and when it was time for the birth I put down two cribs and I had a twins, a girl and a boy. The next pregnancy, (because i like to fill the family) I did nothing again and had one which I was happy with and I wasn’t expecting any more. The last pregnancy, I did nothing once more and had three cribs because of the twins and the one baby and I had triplets, a boy, a girl, and a boy. It’s never happened again and I always lay down more baskets then one. But it’s only worked sometimes. Also it’s better to have a home birth and with the cribs lined up press the crib farthest to the left and give birth so there’s room for the next babies. DON’T START IN THE MIDDLE!!! Hope this helped:))

I have the opposite problem. I get that the fertility trait is supposed to increase your chances to have twins and triplets, but my sim always, always gets triplets. Each. Flippin. Time. So many kids!