Sleeping like a baby, could this mean a babys on the way?

for the bast few years ive been going to bed very late and waking up late, i usually work in the afternoon so it doesnt really matter. but for the past week and a half ive been falling asleep way early,( before 10, when i used to go to bed around 1 or 2) and waking up around 6! never saw the light of day usually till around 11. could this be my body trying to prepare me for a little one? did anyone exerience this and have a BFP?