I came off my pill in july. I had a period around the start of august,i then had a period on the friday 22nd august.

I had unprotected on mon 1st sept he did not ejaculate inside me but i am worried about pre ejaculation? this was with my ex there was no excuse and i feel terrible about it that i was weak ive regretted it ever since as i love my partner dearly.

I then had unprotected sex with my partner on weds 3rd and friday 5th sept. On the 11th sept i done a test and it was negitive, i then done another on the 18th sept this time it showed positive the lines were faint is this because hcg levels were low?myself and partner were over the moon. We had our first scan and the due date is 26th may,i am now 7 months.

Because i came off my pill and fell pregnant soon after i am unsure whether my cycles were the normal 28 days and ovulation to be on the 14th day,this is why i am worried to when i concieved? if i was ovulating on the 14th day it means i would have fell between weds 3rd(12 days after first day of period) or 14th day which is the friday 5th both of these dates i had sex with my partner.

I would be so grateful if anyone can help me figure this out and what the chances are of my ex being the father??