Hai sayang! Please see your doctor or go to the clinic as soon as possible, abdominal pain in pregnancy needs checking, okay? Jangan delay. Better safe than sorry, especially at 13 weeks. Some of my mum friends did experience round ligament pain (rasa macam ditarik), tapi yang dengan sharp stabbing pain kena confirm dengan doctor dulu. Banyak kemungkinan, dari normal growth pains sampai things that need attention, so doktor je yang boleh tahu untuk sure. Take care of yourself!