Hi during pregnancy most women go through some skin pigmentation changes. Some people get it at obvious areas like the neck areas like my sister in law. At least yours is in a private area so that is a consolation. But don't worry the pigmentation will go off after delivery. It will take some time but it does. Don't feel disgusted by it, you should feel proud of it. It is a testament to the kind of body changes you have to go through to have a baby and you and your husband should love and embrace all the changes :) big hugs
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