[Wisdom]

My dh and I are sending our first update letter to our son's birthmother. I'd like help with the wording on something. We're over-due for getting our letter and pictures to her, and I want to let her know why but don't want to sound negative or like we're complaining. The truth is having a new baby is a huge transition and all consuming and so little gets done except for caring for the baby (even sleeping and eating become a luxury), but how do we say this w/out sounding negative? My dh wrote "We apologize that this letter hasn't come sooner. The first few months have been extremely busy (and fun), yet we have now found a balance." The word "busy" doesn't seem to fit, but maybe it's just me. What do you all think? Any other suggestions would be appreciated. Thanks!