So my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> says that today is an important day if I'm trying to get pregnant...but me and my bf had sex last night and then the night before and he didn't pull out so even tho if we don't plan on doing it again tonight can it still be a good change cause sperm live in you for a few days?