welcome to HCM
read your prob, you had miscarrige three times priviously, due to miscarrige normal structure of uterus
is altered, so at the time of pregnancy
it may be patulous or lax, it is cause of pain. other cause of pain is applying pressure downward by fetus. as you had 3 abortion
dont take it lightly, you get sonography
n confirn that every thing is noraml. start any uterine relaxant tab after discuss with your doc.
Dr aseem 9982583020