38 and thought we were done

Da

Found out last week we are pregnant. Needless to say, shocked and surprised. I have a surgery date of 11/25 for a bilateral salpingectomy (Fallopian tube removal) to officially close the baby factory. We have a 16 yo and a 10 yo. What are getting ourselves into? We go in next week for an ultrasound to make sure pregnancy is viable before cancelling the surgery. The world works in mysterious ways.