I have been with my boyfriend for 6 years. We have a 5yr old daughter. Found out he was cheating on me this whole time. So out of desperation I ended up having sex with my ex whom I was with for 9 years. Now I'm pregnant. My concern is I'm not really to sure who the father is. During my fertile week my boyfriend and had sex and he ejaculated inside me on the 9th. Then me and my ex had sex literally for a half of minute on the 12 (sigh) my ovulation day. Didn't ejaculated. Here I am trying to figure out things out. My ex has a low sperm count. Was with him for 9 years and nothing. My boyfriend and I are very careful because it's easy for me to get pregnant from him. My question is can I get pregnant on my fertile day or only on my ovulation day