cramping after holding your pee for a long time!!!

Angela
I'm 5 wks 4 days and I had to pee really bad in the middle of the night, I didn't wanna get up bc I was half asleep I woke up at 6am and peed and after i peed I started cramping I haven't bled at all tho thru the whole pregnancy so far and im not now. Is this normal while pregnant?? Or did I hurt the baby??