I'm pregnant with #2. DH has always been quite firm in wanting two. I'd probably say I'm 75% sure I would be ok with stopping at two. But I reserve judgement til this ones born! Like many BB Mums, I'm an IVF mum so having to pay so much emotionally and financially for your kids is also a big factor. Having said that, we still have four frozen embryos and so that needs to be considered too.