When did you get your first stretch marks?

I got a few tiny ones under my boobs this week (I'm 31 weeks). None elsewhere yet. I feel like I'm going through a growth spurt atm. I've always rubbed cream on my skin but I don't think it will stop me getting stretch marks if I am going to get them, but as others have said, it's nice to have cream massaged into my belly when it's feeling tight and about to explode :)

Thanks everyone for the great responses. I think I can take away from this that its NEVER too late in a pg to get stretch marks :lol:

I'm using Bio-Oil irregularly (just cos my skin's been feeling a little dry and itchy) but I do agree its the luck of the draw wrt stretch marks. My Mum only got a couple of small ones but my sis got them really badly - from her boobs right down to her thighs. I know hers started at about 25 wks so hopefully I won't get them as badly as she did.

My belly feels hard and firm but I still have my "inny" belly button and my skin feels like it still has some stretch left in it :crossfingers: Oh well, only time will tell!

Thanks