Ok so I had sex with my boyfriend on Saturday and Sunday, on both occasions we used a condom and nothing ripped and only on second time did he cum inside. Everything was fine I was due my period 4 days ago and I still haven't had it, I am really concerned as to why it's late? 

In fairness I have been worrying a lot, the odd time I am getting cramps in my stomach but not very often. 

I am really worried help me please!