I'm freaking tf out

Phee • 27 year old makeup artist from Kansas City 😊
I had unprotected sex the day after my fertile window ended and I'm almost positive he pulled out but I know that's not 100% effective. I'm unsure about the possibility of me getting pregnant because I had already ovulated and my fertile window had ended but my period is 3 days late and I'm freaking out 😩 I keep telling myself it'll come but it's hardly ever late. Should I be worried?!