Skin problem? what is it . is it melasma or stretch mark? how to fix

Definitions:: Melasma is darker pigmentation that shows up on the face with pregnancy or with birth control pills. It is sometimes called the "mask of pregnancy," and often lessens over time or with a skin lightening cream. Be sure to use sun screen and avoid the sun. Stretch marks are areas where the skin stretches from rapid growth. Both melisma and stretch marks respond to laser. LGromkoMD