I know that they calculate a due date based on the first day of your last period, but how does that work if you're not working with a 28-day cycle?
I ovulated on CD19, but there would have been cycles where I wouldn't have ovulated until CD30 or later. If I would have been pregnant for one of those cycles, it wouldn't really make sense to count from the first day of my last period.
If I go with the day I ovulated, that would make me 3 weeks pregnant, if I go with the first day of my last period, I'm 4 weeks and a day pregnant.
I'm just curious. I'm assuming a doctor would have to tell you for sure.