Help??

Ok so this is pretty out there but im kind of confused and am really hoping someone can help me understand better. My fiance and I have been intimate everyday the last couple of days we dont use any form of protection. The last few times he has been able to fit all the way in there with barely any pain but today he was only able to get about halfway in there. Could i have ovulated and not known?? My cervix felt high the last few times and now its clearly low. Any info would be nice

UPDATE.. so i had light spotting yesterday and my mom started her period today and i normally start a day or two after her but my app says i wont start until saturday i wonder which is gonna happen. Hopefully no period. Light cramps mild lower back pain and my boobs hurt sooo much.