alright so my baby is a little over 3.5 months and use to be a pretty good sleeper. would sleep from 9-3 then wake up to eat and right back to sleep . she would wake up pretty frequently after 3 but it was never a problem before cause it was easy for her to fall back asleep however now she is so hard to get to bed and doesn't fall asleep till like 11 and wakes up at 3 and after that all he'll breaks loose cause she doesn't want to get back to bed right away (well she does she's still tired and grumpy) But she just keeps kicking and whining infill she starts crying then eventually goes back to sleep and I can't seem to figure out why. I am more tired than I have ever been since she was born and I'm going crazy. she still naps great, Idon't know if she could be teething cause she keeps chewing on h er hands and has a  lot of spit and pulling off the boob and I kinda feel something when I feel on her gums but she doesn't have a rash or any other symptoms so I'm thinking maybe it is a sleep regression ? she was born a week late so I don't know if that could factor in or anything. I guess what I want to know is has anyone else gone through this and if so what was the problem and what did you do ?