From what I’ve read about stretch marks, there’s not much you can do, either your skin is the type to get them or not. I’ve got stretch marks on my hips and boobs from puberty so I’m fully expecting to get them during pregnancy. Sorry I know that’s not very helpful. An oil or cream will be helpful though in making the skin feel less tight and itchy when it really starts to stretch. I would just try some out and use what you prefer. I’m continuing to use my normal moisturiser which is the righteous butter from the soap and glory range at boots, which I love.