Vagina being tighter than normal

I don’t know really what group this would go in but im TTC so I thought why not 🤦🏼‍♀️😂 last night I had ewcm and baby danced twice and this morning. Really good. I went to check my cm tonight to do my daily check and it was really hard to get in there compared to every other day I check. It was super tight but I am still SHOW with my cervix. Right after I checked I got these weird dull cramps I never really noticed before. I just got off birth control to TTC so this is my first time ovulating for a while. Is this normal with ovulation or am I just crazy and thinking things since I’m in my fertile week ? Does your vagina get tight with ovulation ?