Sayang, stomach pain during pregnancy memang perlu check with your doctor, especially kalau it's happening frequently like that. Bukan something to guess-guess sendiri, especially at 7 weeks. A few of my mum friends had different experiences, some rasa cramping, some gas issues, but setiap pregnancy lain, so better safe than sorry lah. Please call your clinic or go in for a checkup, okay? They can actually check what's going on and beri you proper advice. Jangan worry, but do get it checked out!