Pain on my lower abdomen

Yesterday, me and my husband went to the convenient store for groceries. When we gone home after sitting for a while i feel a little stabbing on my abdomen but it was just gradual so i didnt mind. But early this morning i woke up with a sudden pain in the same area, same stabbing feeling but it is now permanent. I cant barely move, something is there i guess. Have you also feel something like this? Im 19weeks pregnant, is there something wrong with this? Have you experience case like this too?