Talk to Gynecologist on Gynecology

I'm 6week pregnant.i have two babies already 4 and 2.5 years old. Both were born via c section.now my issue is abdominal pain.whenever I do some extra work or busy outside I feel extreme pain under my waist line.i visit gynecologist she did my ultrasound and give me pain killer and said everything is alright but my pain hurts me so badly sometimes may be because of my previous stiches or I don't know the reason.plz tell me what should I do or what kind of test I should do