please help, could these be implataion cramps?

iistephyy

I had my period December 1518th, had unprotected sex the 19th and 28th. A couple days ago the 3rd I was feeling cramping like I was going to start my period, of course didn't start my period because it aint due for another couple weeks. Yesterday I was feeling light discomfort, no cramping. I'm not really having any other symptoms. What can this be? .. I do have children 3boys but never experienced this and I read on other sites that it could be a possibility of pregnancy .. Please help.