Hi, pregnant ladies. Quick question: is everyone in the last trimester…

Hi, pregnant ladies. Quick question: is everyone in the last trimester sleeping 12 hours? I used to not be able to sleep at all, but now I sleep all day. I go to bed at 11–12 at night and sleep until noon. During the day I wander around for a couple of hours and then sleep again for 2–3 hours. My mother-in-law scolds me for sleeping too much and not moving enough, but I really have no strength — I'm totally wiped out.