I want a baby but my boyfriend doesn't. Should we split up?

So this is one of the reasons many of my clients approach me for coaching - they know they want a baby my their partner or husband doesn't.

This was a useful bit of advice in a column called I'm 31 and want a baby but my boyfriend doesn't.  Should we split up?  Although I do think leaving it 5 yeas might be a mistake as if the boyfriend doesn't change his mind, then this woman could find herself at 36 with the decision to leave and start over again even more difficult.