Sayang, some cramping and pulling sensations are totally normal in second trimester, it's usually ligament stretching as your baby grows, tapi if the pain is severe or continuous, better check with your doc to be safe, especially since you're worrying about it. A few of my mum friends had the same at 15 weeks and it went away, tapi setiap pregnancy lain so best to get checked, okay? Make sure you're drinking lots of water and resting, sometimes dehydration makes cramps worse. How's the pain now, is it constant or macam on-and-off je?