Swollen vaginal walls?

OKAY TMI:

I check my CM daily. AF is 4 days late and I've had white creamy discharge for about a week and a half now, and a lot of it!

When I checked today my vaginal walls seemed really puffy, so I used a mirror and squatted to take a look at what's going on (lol gross I know)

Well it almost looks like the insides of my vagina is sticking out of the hole it's so puffy!! But when I stand up it looks fine!

I know I don't have any infections or anything I got tested a few weeks ago!

What could this be? A pregnancy symptom?