I had unprotected sx 2 days before my ovulation according to the app. It was only once, I even forgot it had happened. But my period was supposed to start yesterday, I had light spotting and cramping. Now on day 2 no more blood. Could it have been implantation bleeding? My SO has low sperm count, it took us 6 years to get pregnant with our first & 1 year with our second.. we are in no way trying for #3, just had a little accident & I didn’t think much of it because of how long it’s took us before. But now I’m a little nervous that we could’ve conceived that one time