Baby fat & stretch marks 😣

Am
Everyone that sees my belly says omg I've never seen stretch marks so bad. They're literally as wide as my finger or more & they're so dark.. I had my baby girl 7 weeks ago & I'm breastfeeding. My dr advised against using scar treatment creams because it can pass through my milk & no dieting either.. sigh. I was 120 when I got pregnant, I was 170 when I had her & now I'm 150. Any advise on safe ways to help.