Wa'alaikum assalam! Sakit perut masa early pregnancy memang common, especially bila transition ke trimester baru, tapi sebaiknya inform your doctor pasal ni during your next checkup, okay? A few of my mum friends pun ada the same experience, tapi it's always good to get checked just to be sure everything's progressing well, doctor boleh clarify if it's normal stretching or something lain. Take care, mommy!