pregnant?

I'm on the NuvaRing. How it works Is that you insert it into your vagina and leave it for 3 weeks and remove it for one week after those 3 weeks are done. How ever you can leave it in up to 4 weeks. So what I did was leave it in for 4 weeks bc I was have unprotected sex at the time with my partner. I had my period the 2nd week of the NuvaRing being in. It lasted about 5 days , then a whole week after being done with my period I bleed for another 3 days, not sure if it was spotting or a period. I figured i might have bleed agin bc that was going into 4th week i left the NuvaRing in. So I took it out. I still had unprotected sex a few times that week (pull out meth, he didn't cum inside) but now I am 6days late on my period. Boobs are sore and seem to look bigger! During the time I was suppose to get my period, it felt like what I had was period cramps so I thought I was going to get it. But I haven't. Don't know what I should do.