I started TTC baby #2 last month. Have just seen a great job online which I'd love to apply for. Rarely do jobs come up in my field and especially not ones that ever really catch my attention. I'd feel insanely guilty to announce a pregnancy a month or so into a job (or even worse, before I even started, I have a 3 month notice period), but at the same time, I think I'd be a good candidate and an asset to their company (plus I've got staying power, been in this role for 9 years).
YANBU - apply and keep TTC
YABU - you can't have both