Left side Abdominal pain

This morning (3am)I woke up feeling a sharp pain on my left side then I turned to my right and it moved to that side. I switched sides for 10 minutes when I finally got up. When I stand up its a lot of pressure and pinching sensation on my left abdominal area. Is this normal? I'm 36 weeks. I haven't got up lately but when I do it's for a short period of time.