LO is nearly 2.5 and DH and I are planning for baby number 2. Hopefully for sometime next year, but I am really worried about having a baby born between September to December due to the whole issue with starting school and needing to be a 5yrs old by September

Is this really an issue or am I just being silly? Are any of you purposely planning to avoid having an LO born between September to December? Does it make any difference if LO is born in December versus January ?

Advise please?