What's going on!

Ro

So I started taking prenatal vitamins because I'm ttc. So this month on.the 5th day of my cycle I started getting some waist pain and thought it was gas, then suddenly I felt something coming out and it was a clot of blood. So i thought this was the reason for the pain. However next day I got a discharge which was similar to that of ovulation and I'm still getting slight pain in my hips and lower abdomen.