You don’t have time to have a kid before this surgery if it’s in January, and I don’t think either of you want this stress.

Best cast scenario, it’s not cancer, move forward however.

Worst case, you have to decide between terminating the pregnancy or removing the cancer.

And the inability to have biological children does not preclude you from becoming parents. Yes, it’s a much more complicated process to adopt/deal with surrogacy/etc. , but you’re not completely cutting off the option to raise a new generation.

I worked with a lady who had something similar and had a hysterectomy. While I'm sure there was a lot of disappointment in the beginning, they leaned into their hobbies and currently lead an awesome life filled with travel and video games. Alternatively, there's always adoption or surrogacy. Talk with your wife and see what path sounds best to you two.

Kids are life on hardmode. They need so much of everything and take up so much time. Also you could adopt.

You can be completely fulfilled without children. There are so many people in your family, in your community, who need you.

Pregnancy can accelerate some sorts of cancer too - it's obviously your/her call but I would be very worried about the potential harm to your wife, more than the risk of infertility. ( ETA: I know not one, but two single fathers who lost their wives because of cancer that accelerated during pregnancy and the women would not abort to get treated and died soon after giving birth.)

Sorry you are going through this, and I hope it's resolved easily and your fears are not realized.

Having kids sucks, having kids with a medical condition is a nightmare. I'm glad at least my partner is in good health. Sounds like you're after 30 so the child craze should be gone by now.

I also "wanted" offspring in indefinite future. It turned out I didn't really want children.