Getting pregnant after having a baby?

Brittany

How long is a healthy time to wait after having a baby to try and get pregnant again?

I am 28 and my husband is 41, he also has two kids from a previous marriage they are 11 and 12. We have a 11 week old, 2 months and 15days.

We were talking about having another baby but dont want to wait too long, husband doesn't want to be 60 and still have kids in the house.

When is a safe recovery time to start trying again?