Okay, So Me And Husband Had Sex Around My Ovulation

Okay, so me and husband had sex around my ovulation time and now 10 days before my period I am having very light brown to pinkish discharge for about 2 days and I took a bath thinking if it was my period it would start and have got nothing just the discharge is getting lighter and stops and comes back not enough to wear a pad or anything. But I had to small drops of blood about pin size like if you shaved your leg and cut your self so you put a tissue over it. Nothing major. And I've had a little bit of cramping? What is going on?