No. My understanding is that a prenup is what you do before getting married, not before handing kids but maybe it’s different where you live.
If you haven’t yet, look into the marriage and family laws in your country to see how best to protect yourself in case of divorce.
I'm not marrying her.
By law in my home country it's 50/50 no matter marital status. But we are not in my home country..
A solid prenup should be good enough, if she get pregnant. I'm the provider in case she gets, and have to pay all the time she's not working. Because she not EU citizen. So I have something to say in this matter. There should be time enough to make this before she returns to work.
There is aways risk's involved with the laws regarding rights in case of seperation in the western world, only safe haven is MGTOW