24 weeks pregnant with id twins and for the last few days I've been getting some pain the bottom of my stomach (more of a dull ache) and shooting pains underneath which makes it hard for me to sometimes change position I'm sitting in or even get up. I've also noticed a lot of white runny drops of water in my knickers when I've gone to sit down to use the toilet. It isn't the usual discharge I'm used to (sorry about the Tmi) is this normal or not? Help please.