Has this ever happened to anyone.

DH and I are TTC #1 on monday night we BD. Took an OPK and it was positive so I knew we had to that day to but we were soooo busy we had 10  mins haha but we couldn't finish, he said it was the pressure. I get that. But I feel like I did something wrong. And I feel I missed our window. But I took an OPK this morning and it was still bright positive. So we DB. Do we missed the window?