Post baby Qs

Barbara
Hey ladies, I have some Qs about life after delivery.
Did anyone else's armpits become dark in color close to delivery? I thought this was so strange.. Not to mention having BO for like the first time in my life..😩 do u go back to normal?
What do u wear after baby? I lost a lot of weight but had gained a bunch so I'm not fitting regular clothes yet😔
Has anyone been on errin birth control?