There are many brands available. Bio oil is v expensive. u can rely on mamaearth anti stretch marks cream before delivery and essential body oil for stretching skin after delivery .don't scratch ur skin. Moisturising is must.

Bio oil has got very good reviews .keep moisterising the skin...

Apply a stretch marks cream. You can choose among palmers, mamaearth or bio oil. All are good. Also use a good moisturiser during the day to moisturise the skin. Don’t scratch else will increase