Lucky you, at least you're not in the pickle where your period doesn't match up with the conception date. Here is what the conception calculator says about the due date of June 18:
First day of last menstrual period: September 11
Probable date of ovulation: September 25
Possible dates of conception: September 21 to 29
Due date: June 18 (40 weeks)
It doesn't sound at all like partner 1 has anything to do with anything. You had a period after him, and all the dates line up to partner 2. Try to relax.
Yes and no it's always stayed the same
And it was at the 8-9 week ultrasound that they gave you the due date of June 18? Has that due date changed over the course of the pregnancy?
Well i had one right when i found out like the 21 of October and they couldn't even see an amniotic sac bc i wasnt far along enough so she scheduled me to come back in a month and i was 8-9 weeks
And how early in the pregnancy was that ultrasound? (I.e., they said "You're x weeks along and your due date is June 18." How many weeks did they say then?)
At your very first ultrasound, did they give you an estimated due date?