Pregnancy Scare

Krista
Alright so my fiancé and I had sex last Friday, which was amazing btw, and we use the pull out method because we both hate condoms. According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> my period is five days late and I've taken a test that came back negative. I'm taking another one on Tuesday if I haven't started by then, but should I be worried??