I have a clockwork baby and the only thing that affects her routine is teething. So I'm guessing could be teething?

7am - wakeup, morning bottle
7 to 8 am - breakfast
10am -morning sleep (1.5 to 2 hours)
11.30 to 12pm - wake, lunch
2pm - afternoon bottle
3pm - afternoon sleep (roughly 2 hrs)
5 pm - wake up, bath,
6.30pm - dinner, evening bottle
7 to 7.30 pm- bed