My boyfriend and I had unprotected sex on the 15th of feb, my period usually varies between 2-3 days after I take nuva ring out... I stopped using it in jan because we decided to just use condoms as mentioned before we had sex on the 15th of feb... my period was 5days late it showed up on the 28th it wasn't a very heavy flow nor a light flow and it ended on the 3rd of march is there a chance I could be pregnant before it came I was sleeping a lot more I had nausea when I ate and my breast were sore sometimes my small period has past but I still think I could be pregnant.. can someone help me??

Sure you COULD be but you probably are not. At this point, you will just need to wait it out and see if you miss your next due period.