The newborn swaddlebees prefolds that I bought aren't too long for my little girl but the next size up ones are. I just fold them inwards at the front - I guess it doesn't matter if you do it at the front or the back but I think if they were folded at the back, when she goes to sleep she might feel the big lump? Not sure

Good luck with it! We are loving prefolds and my DH is using them without any difficulties at all.
Thanks for your thoughts Starangelk! I didn't realise you could get prefolds for newborns I'll have a look into those. Glad you are loving prefolds and congrats on getting to 6 weeks!