how has your sleeping patterns changed since becoming pregnant?

I really didn't think my sleeping would change much until the baby got here but I'll be 5 weeks tomorrow and I already sleep so different. I've been going to bed early (before 10) and getting up between 6 and 8 on my own, without alarms, every single morning for a week now. It's like I can't sleep-in anymore. Usually on a Sunday I sleep until like noon because we never have anything to do. But I feel so much more rested now than when I did that and idk why 😂