Cramping at 28+5W concerns

I am 28+5 and from last night until now (12:39am) I've had light cramping, and diarehha twice during that time. My discharge is white+clear stringy and at a few points has made my underwear very wet. I've been drinking water and have googled such symptoms and it is being nailed to dehydration but I am still a little concerned. The pains are quite period like, a few have been very strong with the rest being very light and dull. 
Example: Last night I had 1 big painful contraction lasting around 25 seconds followed by a spurt of diarehha, and then around 3 more not so serious feeling across 2 hours, very apart with no need for stool movement.
Tonight: Almost identical but instead of the few serious feeling ones, they were more dull and light in feeling. 
Baby has had no lack of movement during these past hours, feeling very normal in that aspect.
I would call doc but it is 12:45am now and I do not have a midwife yet to contact, just a GP so it will have to wait until tomorrow but it will not stop me googling things.
No blood at all. Not once. Just increased discharge and these cramps.
My question is: Does this sound normal for any ladies on here? I'm not entirely sure if this is normal or not. I'm really nervous about pre-term labour.