My 1 year old still sleeps for 12 hours at night is that normal?

He goes to bed at 11 and he will wake up a lil at 5 then falls back to sleep with in minutes and wakes up a 11am he take an hour nap from 4-5 or 5-6 then takes a 30 minute nap at 8 and goes to sleep at 11pm. I am trying to get him on a better routine but I am 7 1/2 months pregnant and right now its hard. despite the times he chooses to nap and goes to bed at night, is the hours of the sleep normal should he be sleep this much. O and ideas on how to get his sleep a lil more normal like going to bed 8pm instead of 11pm would be fantastic, thanks in advance!!