I have developed what I think is sciatica at 37 weeks I can hardly move at all. All day I haven't even been able to get up and down the stairs iv even had to wee in a jug (sorry tmi). I have felt it coming on the last few days but today it has fully come on. I'm not sure if the baby is pressing on a nerve because she Is engaged. Please someone tell me they have experienced this It's so painful and I can't put any pressure on my left side when I stand!!