wondering about pregnancy skin

I know its normal to get that light brown line down the middle of the belly but my under arms n inner thighs and my koochie is turning light brown too and im a clean person and have tried to scrub it off but it wont come off so im wondering is it normal? and will it go away? its embarrassing because I look dirty think

    OH! I read about that! it's common for pregnant women to develop blotchy areas of darkened skin and it's called the mask of pregnancy.

    The splotches can show up all around your face or any skin that is usually more pigmented – nipples, freckles, scars, genitals, etc. It also can happen in areas prone to friction, like underarms and inner thighs.

    It's triggered by hormonal changes during pregnancy, which stimulate a temporary increase in your body's production of melanin. It will probably fade within a few months after delivery. In some women the changes may stay, but it's usually very subtle.
    About lora knight
    Born: Corbin, Kentucky
    Current: Middlesboro, Kentucky
    Birth: January 04
    On Moms.com since: Apr 15, 2014
    22 years old I have 1 son xander rockstar massengill n am currently 33 weeks pregnant with my daughter kaydince.