O I consider myself "lucky" in the strecth mark department!!
I had strecth marks before getting pg!!! I have alot over my whole body (legs, hips, breasts) I have learned to live with it, but I must say that when I was pg, I used about 4 bottels of Bio-oil just to make sure I don't add to my collection!! Next time around, I would start early with the oil, just be 100% sure!