I have slightly irregular periods so I use the app flo. March, My period lasted from the 19th through the 24th. I had a poor laps in judgement and had sex with my ex on the 25th the day after my period. I also had sex with my boyfriend ( was not dating at the time I had sex with my ex ) on the 3rd and 4th of may. The app flo predicted my ovulation date was the 5th of may and says that I had a high chance of getting pregnant from the 1st of may through the 7th of may. It is predicted that I will start my period in 4 days. However, I think that I may be pregnant because I have had "early signs of pregnancy" (I understand the same symptoms are like PMS sypmtoms). I have mild cramping, had very light spotting 2 days ago, and my breast are more tender and heavy than they normally are before my period. I have not taken a test yet because I want to make sure the test is as accurate as possible. My concern is that if I am really pregnant, will the baby be my ex's or my boyfriend's ?