reckon you should be ok now imwarr, unless you have a quick growth spurt that is.
i got all my stretchmarks from my daughter 10 yrs ago, but didn't get any extra with last pregnancy or this one, so hopefully i am not gonna get any more.
they do fade over the years, but they never dissapear, one of my close friends went up to london for a consultation at a clinic that lasers them away, & it would have sost £3000 to have hers done!! she decided not to.
they also say they are heriditary (sp) like if your mum got them then the chances you will too? my mum has none on her belly, so this theory didn't work for me!!!