I have DS who is 2.4 and DD who is 21 weeks. I have had quite bad PND after both babies and once I'm (hopefully) over this bout I'd like to have a third child (if we're lucky enough to be able to conceive). However I feel like my body needs a bit of a rest and would like to wait until DD is at school before we tried for #3 by which point i'll be 35. Is this realistic? Anyone else with two reasonably close in age and then a larger gap?