Skin Darkening around Vagina-34 weeks

So I haven't seen my vagina in quiteee a along time and was just curious to see if it looks different from being pregnant. So i took a picture of it and i was mortified at what i saw lmao. The skin around my vagina on both sides has changed color and is just brown now? It looks gross.

This has never happened to me before and was NOT there pre-pregnancy! Has this happened to anyone else?!?! And more importantly DOES IT GO AWAY AFTER PREGNANCY? or am i going to have to get some sort of bleaching cream? Pls help.

It used to be the color of my thigh and now looks like i have some sort of skin disorder. Should i bring this up to my dr?