Hoping for some reassurance/advice. I'm just over 19 weeks on my first. Today I've been getting cramping low in my belly - getting progressively worse all day. Hurts more when I walk. Can almost forget it when I sit still. This evening it feels like it's moved further down into my pelvis and feels almost like a stabbing pain. And any movement at all makes it worse. Help! Is this normal? And is there anything I can do or take to get some relief?