Husband springs last night “We should have a baby “ 😳

We have been married a year in a half and together for 3 1/2 yrs. He starts talking about having a baby 😳!!!!! I have a son that’s 4 from a previous marriage and he has a 18 yr old son from a previous marriage. We have talked about this before and decided not to because he’s gonna be 50 (vasectomy 17 yrs ago) and I am 44 plus I have diabetes( was high risk pregnancy & delivered 36 wk due to preeclampsia)...

I would love to have another child for us and my son will have a sibling.

My question is if the doctor gives you the okay would you consider this?