Hi, I had unprotected sex two days before I was due on then I didn't come on for two weeks, and my period is now lasting for eleven days and still going. I'm unsure if I'm pregnant or not?

No one here can tell you. Your period can be off for many reasons, pregnancy is only one of them.

Time to take a pregnancy test, that's the only way to know for sure.

Why are you having unprotected sex if you don't want a child?