HI, I have a question as i recently found out i am pregnant. i have been trying to have a baby for months now With my husband. My last period started on the 18th of the month (sept.) and i had protected sex (with a condom, proper use) with a guy on day12 (sept.29).

 My cycles are very long (last 3 cycles 35, 42 and 57 days) and i use ovulation kits to time my ovulation every cycle. 

Therefore my peak (ovulation) was on the 7 and 8th the month (2 days LH surge peak), therefore it was on cycle day 20, as every cycle its between day 18-21. i had timed unprotected sex with my husband on the 3rd, 5th and daily during my peak 7th and 8th of October. 

i am now pregnant. and i am wondering if the sex with condom on On sept.29 could be the result of pregnancy? i don't think so, but please advise.

My early dating ultrasound put my due date 1 weeks later than by LMP estimation which confirms I ovulated on October 8.