Anyone else dealing with severe fatigue/tiredness?

The last couple of days I cannot seem to wake up. At work I am extremely fatigued to the point of just laying my head down whenever I get the chance. On the weekend I slept in until 12 pm woke up for an hour and then went back to sleep for another 3 hours. I did the same thing on Sunday. I cannot seem to shake this tiredness. I am 6 weeks and 3 days. I’m trying doing yoga and doing laundry around the house but every little thing makes me want to 😴 I’m getting so frustrated