This is known as vaginal discharge, we all get it to help clean up there. It is actually called candidas, and this is a bacteria that we all have to clean us, however, if we wash too much, wear tight clothing, or wash with perfumed products, we can get too much of it.
Also often we have more discharge when we are ovulating (approx 8 days after your period)
The best thing to do is contact your doctor, and they may prescribe you with canesten duo, which is just a cream and tablet to take.
However, vaginal discharge will never go away, ive been getting it for many years now, and im 18 now.
You can look up vaginal secretions or a similar phrase on Wikipedia, and it will give you some good information.
best to have it checked out by a doc.Vaginal mucous is normal but its not supposed to have a foul or offending smell.It may range in colour from white to colourless depending on where you r in your cycle.