They will just swob you and test it. If stick (swob) turns black then its fluid
Id go in right away if your leaking and it dosent stop! Or if it has a sweet smell. Then that usually a sign of your water. And to be sure you wont catch a infection, if opened a little.
It could be a small amount of fluid but most likely it is just excessive discharge. Go to your doctor and have him check to see if your water has broken and check if in deed it is discharge, like myself, if there is bacteria. There was none in mine, thankfully. But you need to check yourself as soon as possible for many reasons.