Hitting my cervix during sex

So it's ovulating time my fiance and I were having sex maybe 2 nights ago and we were in missionary and he had you girl let's up and propped on his shoulder after a few thrust I feel him hit up against something in there and I felt a sharp pain so a the next night there was alittle light discharge of blood barely noticeable I only knew it was there because I smelled blood when I went to pee but it was only on the tissue not in the toilet and like I said very light and now it's the second day and when I wipe I get light blood here and there but not all the time and I don't have cramping should I be worried?