My ex girlfriend is due to have a baby in the next 5 weeks. I'm not sure if I could be the father or not, as her and I slept together and had sex every night during the week, and we seperated at the weekend. The next week she had one night away with a guy who is now her current boyfriend. Some one said to me that there's more of a chance that its mine than his because i slept and had more sex with her than he did. Her cycle meant that she was at her most fertile on the weekend we seperated.
Following on the theme, how the bejesus do you know she had sex with someone else? If I had just split up with someone, the last tng I would be doing is discussing my sex life with them.