Needed to vent lmk if you can relieve some of my panic

Anyone else have really bad anxiety and are freaking out there are pregnant. I have birth control but sometimes I forget and double up on days. One day I ended up taking a plan B and that was just over a week ago. Was supposed to start my period yesterday but still hasn’t come. I’ve been under a lot of stress and I know that can push my period start date. But I literally can’t sleep because I overthink about this.