3 weeks- was on 3 hour, now only going 2??

[gracie3]

Could use some (non sleep deprived) help!
DD is 3 weeks tomorrow, and up until yesterday, was settling into a beautiful 3 hour routine, day and night.  Monday afternoon, however, was very fussy, wouldn't sleep through two "cycles", from about 4 until 8.  AFter that, did fine through the night (every 3 hours) and most of the morning yesterday.  Then from about 1 p.m. until bedtime, would only slep in snatches, and fed every two hours.  Gave us one long stretch (7:30 - 11:15 p.m.) then up at 1, 3, 5, and 6:30.  Right now she is swaddled, and tired and in bed, and having a hard time going to sleep. 
Any ideas on what happened to our routine?  I have two other kids, but we've kept it low key, have only gone to drop ds off at school and back- no other weird things. Any suggestions would be helpful!
Thanks

[LŠuren]

Hi

{{{{hugs}}}}}
How haave you been getting on since you posted yesterday    Do you think she is going through a growth spurt at the moment? That would account for feeding every 2 hours and her naps being disprupted because she is hungry.

Are you breast or bottle feeding?