It's my 16th week with 1st baby. At beginning of my pregnancy, everybody told me not to bend,sit down with jerk or walk promptly. Whenever I did, I had cramps like thing and when I rested I was ok. Vaginal discharge was intermittent. Now, 4 days back I sat on my room carpet with no support and stood up and when I slept, woke up at midnight due to gush of fluid trickling out of my vagina and had cramps. I thought, by resting it will be ok but since that I had discharge with severe cramps like pain that's intermittent and feeling stress on my uterus with back pain although I'm resting and by all day I have light cramps. My concern is even I'm resting why am I not getting rid of that stress and cramps whilst before that sitting mistake I was fine. Is it normal? Thanks