WHY DID MY VAGINA TURN PURPLE!? (no pictures lol)

Victoria • Harley's mommy 💙👶🏻12-4-16 Due with baby #2 Oct 2024 👶🏻
Yeah. Exactly that. I haven't been able to see my vagina for a few months now so I usually just shave blindly but today I got a mirror and checked out what's going on down there AND MY VAGINA IS LITERALLY DARK PURPLE almost blackish grayish looking. I'm 35 weeks and last time I inspected it wasn't dark. What's going on. I'm a FTM. Will it go back to normal? Why is it dark?
UPDATE: its pink again...after sitting for awhile it turned pink again.....but after standing it gets really really dark. Calling it a chameleon. That's it.