Slow leaking waters?

Is it possible to leak waters over a couple days? The past 3 days iv had prodromal labour and with it sometimes I notice there's a wet patch like iv spilt a teaspoons worth of water on my undies, sometimes I lay down and it leaks down to my butt. I'm having normal discharge (creamy cm) but also having this very watery stuff. Iv put a pad on (about 30 min ago) so going to see if it dampens over time.

I'm 38 weeks tomorrow.