Postby TFP » Tue Dec 08, 2015 11:43 am
My main bit of advice would be to do it ASAP or not at all. Even if OP conceives tomorrow, her youngest will be the thick end of 3 years younger than DC2 and 5 years younger than DC1. Certainly in the case of DC1 that's pushing the boundaries of ages for kids to 'play nicely together'.
My personal, entirely subjective, opinion is that a 'pigeon pair' aged 1.5 yrs apart is perfect in every respect, but of course others may disagree. If money [and therefore living space, transport, etc] is no object then a really big family certainly has its charms.