Abdominal pain in night

[Nikilll]

Any one feeling, sitting longer in sofa then having abdominal pain. I have abdominal pain while sitting in sofa and next blood spotting. I'm on combination pill, I'm taking same time every day. Now I'm using paracetamol tablet, diclofenac gel and 2 pill on the one day. I need no spotting and no bleeding and no heavy period during pill. I'm taking same combination pill from 16 months. But why happened to me this type of spotting etc. Last month ultrasound scan report was normal. Last month heavy clots and bleeding on the pill.

Note: I'm virgin

Thank you endo warriors