So according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> my fertile window isn't supposed to start for another week...but I was wondering if I were to have sex and he were to come in me, what could be my chance of getting pregnant?? <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> doesn't give a percentage like it does during my fertility window.