Am worrying myself! My implantation pain was a spreading sharp pain on the lower left of my abdomen. Since then there's been the odd twinge, nearly always on that side. Today a dull ache has started, that's constant when I'm sitting or bending. It goes away when walking/standing. I'm 5 weeks. No bleeding or anything else. Thinking of ringing the GP in the morning - is it a Dr or midwife do I see?