So I've been on the shot for 2 weeks now. I had sex for the first time with protection a week after I got on it. Followed by twice more that week. My last period was on May 7-11 and I'm yet to start mine but it says I'm two days late. I'm probably over reacting but it's stressing me out. I'm on birth control and he used a condom that didn't break or anything. Any thoughts?