Cramping tu memang common dalam pregnancy, especially 24 weeks ni, a few of my mum friends had the same thing and doc said it's normal ligament stretching, tapi since it's your first time memang rasa worried. Kalau cramps ni tak severe, x berdarah, x ada discharge pelik, usually okay je lah, tapi sebab you're concerned, best check with your gynae next appointment or call the clinic to be safe, okay? They can confirm everything is progressing well and put your mind at ease!