It wasn't a huge adjustment for us. That first baby rocked our entire life so welcoming a second didn't alter too much. We have a 3.5 year gap. There was and still is, a lot of guilt on my behalf that I don't get to spend that 1 on 1 with DD much anymore. We did notice having such a 'big' gap that you forget how much a baby needs eg nappy bag, constant holding etc etc. Household is much much noisier and busier but for us, it was far easier adding number 2 than it was bringing DD home! I loved the age gap with our babes, DD was able to understand so much more and was so incredibly excited!