Ok I need help

Theresa • I'm 20 years old pregnant with my first i have aways wanted a baby 😘😘
So where my leg and vagina meet I have a red spot where maybe my underwear rubbed maybe I don't knoe really  but I have gotten it twice and it hurts really bad and I don't know how to make it not hurts it's not a bump or anything I know I'm clean I have been with the same guy and I get checked regularly by the lady doctor so I don't know what is going on I shower everyday and am very clean