So my boyfriend and I had sex on what my other app said was my fertile day. We used a condom and it never popped. I was supposed to start my period yesterday but didn't, granted, it's not rare for me to start late. But also yesterday my boyfriend and I broke up. I know stress and extreme emotions can affect your period. Also because of the break up, I haven't eaten anything in the past 2 days. So maybe that has something to do with it as well. But part of me is a little worried about the chances of being pregnant. I don't think I am but I always psych myself out. Any advice?