I've been woken up by them too! They've lasted for hours before. Sit up, drink water. Take Tylenol if you need it. :) It's just your uterus stretching and growing. Kinda hurts lol You only need to worry if you bleed, or if they are soooooo bad you feel something is off. I mean I had bad menstrual cramps my whole life, to the point where I laid down and cried, so I was able to lay there and endure fairly bad cramps without meds and wasn't even concerned. Looking back I found it odd lol. I wasn't even concerned enough to call my mom. But yeah, totally normal. Water, watch TV, rest. You'll probably be sore in your uterus area later/tomorrow lol
It is very normal to cramp throughout pregnancy. Try tylenol. If it gets severe and you start bleeding then go to the ER.