I don't mean to come across critically (in case it does). My personal feeling is that as a mom with young kids, my alone time is limited, and it's a personal sacrifice I accept for now. I have to leave my house by 7:30am to get to work on time. So, I enjoy the mornings that they're up before I leave so I can say hi to them and wish them well for the day.
I've also noticed with my kids (ages 2 and 4) that they have completely different circadian rhythms (http://en.wikipedia.org/wiki/Circadian_rhythm) which are completely related to our biologies individually and are very difficult to change. They're simply part of our body chemistry.
I am a night owl. I can not to go bed before 11pm, but getting up in the morning is really challenging for me. My son, no matter what time he goes to bed, is an early riser and ready for breakfast first thing. Our daughter (2) consistently goes to bed after 10:30 and would sleep until 9:30 if we let her.
So, I wish I had advice, but my personal feeling is that you may just have to accommodate it until their growth changes......and, see if your husband can help give you the time you need in the day for yourself.