Pelvis pain!!! Sharp

o.z
I'm 15 weeks pregnant and I have lots of pain!!! A sharp pain!!! I get it ones Ina while.. Or every time I go to the restroom and Bend foward!! I already went to the hospital and said the baby is fine but I'm scared because is so sharp!! I use to think is normal because they said is because my pelvis is growing does anybody has a nice answer for me please