I have a 28 day cycle and my flow comes the 16th if each month.Me and my man had sex July28,30,1,2 because this was my most fertile days but my period came on the 13th and lasted till the 18th but it was so weird I spotted red first it took a couple hours to come then when it did ur was light. It wasn't the kind of period red it was like a reddish brown, then the third day of my cycle it stopped I didn't see it for a whole day then it came back the next day and was Brown till it was completely over. The pain was so real the first day that's the only reason why I think it was my period because I have bad period pains when I first get on. So after that I felt nausea a lot lost my appetite lower back was killing me felt bloated but on the 23rd I went to the bathroom and wiped to see pinkish discharge but then after the wipe it was gone. So I'm confused if its possible to get pregnant but have your period before you do please tell me what's going on