I've got three under five, plus a five and a ten-year-old. It's kind of insane most days, I won't sugarcoat it. But I know you can do it. Just take it one day at a time, okay? You'll find a new normal and you'll realize there is more joy than there is insanity (at least, most of the time) and there is just something about the crazy pitter-patter of 4 sets of feet running down the hall to see who can be first to hug mom and baby brother first thing in the morning.
Orangefoot, I have a tent you can borrow
Welcome, Cymbeline I have a similar story with my first kids dad, and yes, it's nice having a partner in parenting, as opposed to just a husband/partner. Oh, and I complained to the manager of our local supermarket because every time I've been in with all four kids recently, even when they've been very well behaved, the check-out operators have felt entitled to comment on how many we've got. : in a negative fashion- I can live without the "rather you than me" comments, and "you've got your hands full."