is my period coming?

Okay according to eve I'm suppose to get my period tomorrow but all of this week till like maybe wendsday I was stressed about being pregnant (it was my first time having sex last week) but after wendsday I wasn't stressed. Yesterday me and boyfriend had sex again (Note we were protected yesterday and last week) I'm having some what of bad cramps and I also have a bad headache, are these signs my period might be coming soon?