***Lurking from WTO***@Dilynne it's hard to say for sure with knowing what your CM was doing on days 19/20, but I think Day 19 is a possibility, especially if you have had a slow rise ovulation pattern.
Lurking from WTO @JJMNO1616 I kept my last name. DH knew it was important to me and frankly he doesn't really care. He knows we're married. My MIL and my sister will make comments at times (5 yrs later). The biggest question we have is what last name our future children will have. I'm okay with them having his name, he mentioned a hyphenated name. I do get comments from people like, don't you want to have the same name as your children, but in reality my mom didn't have the same name as me (she remarried) and I think I turned out alright. At this point I'd like to just get KU, we can figure out the name stuff later.