Late.

So my period was suppose to start 3 days ago and I'm kind of freaking out. Normally my period is all over the place but I spotted last week for a few days, on and off. And I was waiting for it to start cause I usually only have heavy day and the rest are moderate. My bf and I are very good at using condoms every time we have sex. But I know I know about those unlucky people that land in the percentage, which I'm hoping to stay out of. I'm so stressed out.