When does the pain stop?

Anne C • 29 | Nurse | Mom of 1 💘| Due in Aug w/ #2 | two angel babies
I had a natural mc on Saturday and I've done nothing but sit in the bath or lay in my bed. I was between 8 and 9 weeks and my abdomen and pelvic area are still very sore. I'm taking T3's but the pain is still there. It's achey like I have just given birth because I guess technically I have. 
When does the pain go away?