Conception Question

[sn318]

Just looking for some reassurance, please no bashing, I appreciate any input.

I had sex with guy A when my boyfriend and I were split up, on April 30, 2018. I took the morning after pill the morning after on May 1, 2018. I had also taken the morning after pill on April 17,2018 (so two times within a two week time frame)... Let's just say I wasn't being the smartest.

I do not remember getting a period in May, but when I talked to an APRN at Planned Parenthood she said taking the morning after pill twice in that time frame could definitely cause me to miss my period completely.

I took multiple pregnancy tests through May and into June and all were negative. I noted my period as starting June 5, 2018 in an app I got, it only lasted until the 8th of June. I've been back with my boyfriend since early May and have only had sex with him since. I continued taking pregnancy tests through the end of June and all were still negative. I got my first positive pregnancy test on July 6, 2018. Based on ultrasounds I conceived somewhere between June 19-June 24.

Is there absolutely any possible way that my ultrasounds could have been off by so much that I could have conceived from my encounter at the end of April or can I be 100% sure my boyfriend is the father?

I had 4 early ultrasounds up until my anatomy scan:

7/18/18 -- 5 w 4 d
7/27/18 -- 6 w 4 d
8/7/18 -- 8 w 1 d
9/5/18 -- 12 w 1 d

Ultrasounds date according to how bit big the baby is compared to average babies. So a couple of weeks difference is not unheard of but I'd be very surprised if it could be out by 2 months.

I think you can breathe easily on this one. I hope all is good with your bf now. Congrats on your BFP!

I swear this was a thread before...

It isn't the guy who you slept with in April's baby. Scans can be off by a few days, not 6 weeks.

Do a dna test once the baby is born for your own peace of mind as it seems nothing anyone can say will reassure you...

There's quite a long time between end of April and mid June. I don't think a 12 week scan could be that far off with dates, so I'd be confident your boyfriend is the father.

No, ur safe!

Thank you for your input thus far.

Early scans are quite accurate to within 2 weeks. They would definitely pick up if the baby was measuring much further ahead.

That's what I've heard, give or take 2 weeks is about the margin of error.. although some people say it's even less than that for ultrasounds in the first trimester, I think 2 weeks is playing it safe.

Had I conceived even 1 full week after the encounter on April 30, I would have been 10 weeks from conception date when I had my first ultrasound on July 18, which would've put me measuring at around 12 weeks gestational on the ultrasound at that visit and I was measuring 5 w 4 d..

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