Sleepy!!

Anyone else in their 3rd trimester super sleepy? I woke up today at 8 and dozed of and on till I finally got up at 930. Feed my 3 yr old and went to lay down because I was having some stomach pains and fell asleep again. My husband was watching our 3 yr old. Then finally got up at 12 and took another short nap after 3! Is this normal? I never sleep this much! Never