I don't know what's going on 🤦🏽‍♀️

So my period is 2 weeks late then yesterday I started to bleed & its bright red & stringy but heavy. I've been having bad cramps these past 2 weeks & today got really sick at work . Is this normal , am I over stressing it or pregnant ? Yes , I had sex but he said he pulled out 🙄🙄🙄 What do you guys think ??