Freaking Out Because My Period Is 3 Days Late

Freaking out because my period is 3 days late. I had my last period, but it wasn't heavy. Not like the usual. I had unprotected sex twice, but that was way back at the end of October! He took the necessary precautions, but should I still be worried?? I've been super bloated and gassy the past few days. I don't normally out weight on that easily, but I see it in my face and stomach. There are so many reasons why a pregnancy is not good for me right now. So. Many. Any help would be appreciated. Thanks 😬