Uy, mama, para sa abdominal pain during pregnancy, lalo na kung recurrent, kailangan mo talaga makita ng OB mo agad, ha? Better safe than sorry, especially ngayon ka lang 19 weeks pa. It could be something normal like stretching or gas, pero only your doctor can check properly and make sure baby is okay. Don't wait, book an appointment or go to your clinic this week if possible. One of my mum friends had similar concerns and the doctor reassured her agad, so go na, okay?