"But Mom..." I winched and she cut me off (pun intended...) immediately: "Oh, do shut up dear! Yes, I know she and I promised you to get one chance at knocking her up before you would go to the clinic anyway, but yesterday us girls got to talk and we decided it would be much more fun if I was going to cut it off while she would be looking. So,we changed the plans. Be a man about it for as long as you still can. Haha...""