Ovulation discharge

Had sex Sunday dec 14th which was cycle day 13 for me didn’t even realize I was ovulating until I got home and peed wiped seen the clear stretchy discharge mixed with streaks of blood I’ve noticed that happens when I have sex around my ovulation but I’ve haven’t been doing it the day of the clear discharge the next day I had creamy discharge mixed with blood does this happen to anyone else my stomach was also cramping which happens every month I ovulate I know my body well I planned all my three kids and knew each time I ovulate based on the discharge and cramps but now I’m actually worried about being pregnant since I didn’t realize and I’m not sure why I’m bleeding durning ovulation maybe it’s because I’m getting older ?? I just need some advice on one my chances of being pregnant two this discharge