Aches during intercourse??

So my calendar first said my fertile days started last Friday, and we did the deed everyday from Friday to Thursday, with my highest % being Sunday, well Wednesday I had a lot of pelvic pain through the day and when we did the deed that night I had sharp aches near my cervix. Nothing from lubrication or anything, almost like he was too deep, well today my days changed for some reason and made my most fertile day Wednesday. Could the aches have come from it being the special time?? Fingers crossed!