Am I being hormonal?

I am a tax accountant and the big deadline is coming up so I have been working extra hours including Saturday. During the week after work I still have to go grocery shopping, help with dinner when I get home and wash dishes. I am 9 weeks pregnant and honestly after a 10 hour day at work all I want to do is lay on the couch. Or better yet in bed. Five minutes of reading a book and I'm out. My husband and I didn't have sex since last week so yesterday I promised him to have it before we go to bed. I was so so so tired and sex was the last thing on my mind. So I said lets do it in the morning. Forgot to mention for the past several days I have been waking up around 4 am and just laying in bed till my alarm goes off at 6. So this morning I woke up around 5 and asked my hubby if he was up for it. He hugged me for a minute and then went to take a shower. Next thing I know he is getting dressed to go to work.