Cramping and Lower back pain 24 weeks pregnant

Patient: I am 24 weeks pregnant. In the last 24 hours or so I have been experiencing menstrual like cramps and lower back pain and the occasional stabbing pain on my right side around navel level and in my lower right back. I just was curious if this was something I should go to the ER to have looked at or if this is just normal growing pains.

Symptoms: Cramping, lower back pain, right side pain