Kejang-kejang awal pregnancy tu memang biasa, but it's one of those things yang better to check dengan doctor jelas-jelas, terutama if it's paired dengan bleeding atau severe pain. A few of my mum friends experienced mild cramping early on sebab the uterus is stretching, tapi every pregnancy is different, so don't compare dengan orang lain. Mungkin juga hormones yang acting up, sama macam period cramps, but honestly the safest thing is to mention it to your gynae at the next appointment or if it's really concerning, call them sooner lah, better safe than sorry!