Sabar sabar, first pregnancy memang rasa macam apa je pun jadi risau kan! Stretching pains tu normal sangat at 15 weeks, uterus kau growing, ligaments pulling, so intermittent mild cramps are actually okay, tapi kalau suddenly worse, bleeding, atau stretching for hours nonstop, better check with your doctor just to be safe and get peace of mind, especially since ni first time for you. A few of my mum friends jugak ada cerita yang sama, pastu doc reassure them semua fine, so don't worry too much lah!