17 weeks and right side pain

I posted about this late last night and wanted more advice because I only got 1 reply.

Since the beginning of my pregnancy I would always feel a shooting pain on my right side when getting up quickly and moving a certain way. Well, starting yesterday it started as a constant "uncomfortable feeling" on the right side and then has moved on to being slightly painful and when I push into that spot it hurts more.

Has anyone experienced this? What was the cause?

Is it worth calling the doctor or are they just going to say its "cramping" ?