My period has never been regular, like never has been an every month occurrence but ever since I started having sex, it's been freaking me out. According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> I was supposed to start five days ago, I have all my usual period symptoms, but no period. We've been super careful, we always use condoms and he usually pulls out anyway. I know that there's always a chance of being pregnant but should I be this worried even though my period is always super irregular? How long should I wait before taking a test? Any reassuring input would be appreciated.