I got mine in the third tri. I'm fair skinned so I didn't expect to get one as they say fair skinned ladies don't tend to get them. Mine was pretty pale - above and below and it's only just gone and bubs is 3 months old now.

I noticed a couple of mentions of stretch marks here. I didn't get any until about a week after the birth. I stopped rubbing my belly butter in when I gave birth - big mistake. Gotta do it for a month afterwards.