Pregnant!?

Brooke

Okay so my last period was dec 13, it is now Jan 21 & still no period! My last two period fell on the same day so I’m not that irregular. I had sex once dec 25 & multiple sessions dec 29. I was ovulating then. I had light cramps for about a week 1/2 when my period was supposed to start but no period. I’ve also been super exhausted. they didn’t feel like my normal period cramps either. No spotting yet, should I be worried?