Belly Stretch Marks

I have some brown stretch marks showing on my belly, and I guess it's normal being pregnant especially I am carrying twins and I am hoping they will be vanish eventually after my delivery. I guess the vit. e lotion that I bought and my effort and kept putting 2 times a day on my belly doesn't help. I am trying not to worry about it as I do not want to be feel sad that my belly will be looks ugly due to stretch marks and they are visible since I have a lighter skin, I am sad a little bit seeing the brown stretch marks but I can't help to get rid or to avoid not to have them, I guess this is it being pregnant, but I still have hope that my belly will not be look very ugly or not to have tons of stretch marks.