Hi Belle,
Would you say that your period in March was "normal?" Like others that you've had? If so, it was unlikely you were pregnant then. You need to wait at least 2 weeks for the home tests, you did. They were negative.
You say that you expected your period around February 21 but from your post you also say it came March 9. That is a bit unusual.
If you are 36 weeks 3 days along as of today, that would be March 6. Doctors base dates off of your LMP. Why? Because most women know exactly when that was.
It looks like your husband is the father.
There is always a chance it was the ex. It really depends upon your March period.
Question what do you mean if I'm 36 weeks 3 days as of today that would put my period as of March 6th && not the 9th? I can't really say if it was "Normal" since it was short, but it wasn't necessarily spotting neither.My periods tend to be irregular too with me skipping a month but it did seem a little off to me. Could it be it was just really late? I find it odd too that it came so late when I expected it from February 21-24th the latest. Could it be my ultrasounds are wrong? Technically if it was ex by my calculations my due date would be tomorrow at exactly 40 wks if not early December.
Don't worry about 3 days in my calculations. I used an app to track back what your estimated gestation is and when your LMP would have likely been.
Ultrasound dating is not an exact science. Everything is an approximation as are due dates. They look at "averages" and estimate how far along you are. No test can pinpoint exactly when you conceived. Still, it is unlikely they are off by almost a month.
You say your period seemed "a little off." You also indicate it was late and "short." I know you had a negative pregnancy test but they are not always reliable early on. Irregular periods make it harder to estimate when you should have ovulated/conceived.
I'd be more comfortable if you said you had a "normal" period.
Your period before should have started around January 24. Normally you'd ovulate sometime between days 11-16, or the 30th to the 9th. Sperm can survive about 5 days, the egg, 48 hours. Having sex on Feb. 10th it is very possible for you to conceive - again, irregular periods and I'm using averages.
When did you have sex with your husband in March?
Ultimately, I think you're looking at a DNA test to determine who the father is.
Hope it helps.
The 3 day earlier period in January, and you said "protection" means it was unlikely you conceived then.
No, I don't believe they could be off by a month in their estimates.
I'm feel more confident saying that it is your husbands baby.
I don't think you were pregnant when you tested after the ex. The timing would have been poor for you to conceive with the ex and you said you used protection.
Both of those are reasons I feel more confident in saying that it is your husbands baby.
The timing should be even worse for the 13th.
This is my earlier estimate: "your period before should have started around January 24. Normally you'd ovulate sometime between days 11-16, or the 30th to the 9th. Sperm can survive about 5 days, the egg, 48 hours."
I would amend that to be You'd ovulate from the 27th to the 6th. Sperm could survive about 5 days, the egg 48 hours. Basically, by the 8th it is unlikely the egg was viable (able to be fertilized).