Really need help about conception

[Gsb1234]

Firstly apologies for this long winded post, I am at my wits end and need some advice!
Ok, so my baby is due on 6th May (the closer it's getting the more scared I am) my problem related back to conception/early scan/dating scan!

Here goes.....

My LMP was 30th July 2015

On early hours of Sat 8th Aug I foolishly/drunkenly let another man finger me, whilst he was playing with himself (sorry tmi) it was a silly mistake at a party and I regret it so much as infidelity is not something I agree with at all! (Bear this part in mind for the scan dates to follow)

I slept with my BF on 13th August 2015 (the only day in a period of one month due to him being overseas) he didn't finish though! (Which leads to more confusion)

I found out I was pregnant on 14th September 2015 and was sent for an early ultrasound due to past problems! My scan was on 17th September and sonographer said I measured 5 and a bit/6 weeks! I cod clearly see a little heartbeat also! When I count that back it takes me to possible conception being the 8th August, would you agree?

I know this sounds ridiculous because I didn't actually have intercourse with the other man but i have the fear that perhaps he may have had sperm or even precum on his fingers when he touched me and this is what's lead to pregnancy!

I am distraught at the fact I am even doubting this, any help or advice would be appreciated x

[Gsb1234]

All that you have said, I agree with and I keep trying to tell myself it's a very slim chance of pregnancy having resulted from the 8th aug! It is just because my early ultrasound seems to pin point back to that exact date I have got myself in a state x

[KAnuCmEY]

women usually ovulate aprox 2 weeks from the 1st day of their cycle. All dates that you provided say that you and your BF had intercourse at prime time for you to be ovulating and conceive. Dates alone say you are pregnant with your Boyfriends baby. It's pretty close to impossible for sperm to live on a hand, be exposed to air, be put on your vagina, and find it's way to an egg. Add in the date that it happened and it's obvious that he wouldn't be the father. I think when we hit our 3rd trimester we start to become hormonal and over think everything. I am no expert, but did struggle with fertility for years, so know all to well how our bodies work to conceive. And in my own opinion, I say you can rest assured with the information you provided.