am I️ pregnant?!

So I️ was supposed to get my period yesterday, but it never came? I’ve been experiencing the sore breast and every now and then the stomach cramps. Also I’ve been getting the worse headaches ever. I’ve had protected sex twice last month and this month I️ had unprotected sex only once, but my boyfriend used the pull out method and I️ saw he didn’t nut in me.. I’m really confused on what’s going on with my body??