I have 2, ds is 4 dd 2.7, I miscarried in Nov at 6 weeks. For quite some time I have periodically thought about having number 3, practically it's not impossible but it would be a lot of hard work, the potential age difference keeps increasing, I like my growing independence. However I keep getting that urge now and then. Has anyone felt this but done nothing, and then found that the urge gradually goes away as your children grow?