13weeks 1day

Hey! So I’m 13 weeks and tonight I’ve been having sharp pains like inside of my vagina. Is this normal? I’ve also been having some light to mild cramping here and there... I used to cramp earlier on in my pregnancy but I haven’t in a while and the period like cramps have came back. I have my ob appointment tomorrow but I’m scared because of the cramping going away for a while and now coming back suddenly.