super sleepy during pregnancy 💤💤💤

27 weeks pregnant and now a stay home mom. Had to resign my job due to the heavy lifting and other heavy duties. Every morning I wake up around 5:30 and prepare my husbands lunch for work and then go back to sleep for an hour then wake up again to take my daughter to school i come back and it's like about 8:30. All I want to do is come back and sleep another 2-3 hours. I wake up around 11ish then go on about my day and do chores around the house and run errands. But I'm just super tired is this normal?? Is this part of the pregnancy?