discharge or water leaking?

💋❤Kristi❤💋 • mom of 3.

I am 38 weeks today and after a few minutes of moving around getting my kids their food I sat down and I felt like water came out. so I checked and it was like water mixed with a very small amount of whitish discharge. all day my underwear has had like a wet stain so I'm wondering if it's my water slowly leaking. I've been having mild pain down in my lower pelvic area but nothing too bothersome. any advice?