Aiyoo jangan risau sangat, cramp dan pulling sensation tu mmg common dalam trimester pertama especially kalau first baby, uterus you sedang stretch and grow, so memang akan rasa macam tu. But since you're at 7 weeks and baru hari ni terasa, best lah you check in with your gynae just untuk peace of mind, especially important first pregnancy ni; better aman daripada risau kan. A few of my mum friends also felt the same thing early on and doc said semua okay, so likely you pun fine je, but don't wait, book an appointment this week lah to be safe.