With DS I returned to full-time work when he was 8 weeks old. It was purely out of necessity, but I was working from home so it wasn't so bad. Dh stayed home for 5 months, then we hired a babysitter.
This time DH is earning enough for us to get by, so I will stay home. I do plan to return to work (part time hopefully and something different) when DD is around 2, which is when we're comfortable putting them in daycare (ideally). I might look to do some casual work on weekends or something before then though. Some time when DD is eating more other foods and I'm getting some sleep