Hi there...it sounds like you could have either a slow leak or a 'hind water' leak. A friend of mine leaked like this for a few days before labour started.

You might want to get the leaking tested, because if it is amniotic fluid, your caregivers might like to have a time frame on the labour starting to avoid infection. That being said, I lost the lot in one go (the classic tv-style...whoosh... and streams of water) and I didn't go into labour for about 16 hours. The hospital wanted to induce me within 36 hours, but luckily it all happened sooner.

HTH