You could be lucky. I had five fibroids with DD, one large and popping out of my belly, and not a stretch mark to be seen (and both mum and nan got them).

I use Mama Bee Belly Balm. It's natural with pumpkin seed oil and olive oil, made by Burt's Bees. I use it probably 1-2 times per week after a shower. In the shower I use Palmer's Cocoa Butter shower gel. I'm 31 weeks pg with this baby and no stretch marks again (yet!!!)