Not having a good day

I have 11 weeks to go and I'm not sure how. Today is Tuesday and it's 8:10am my body feels like it's Friday @5pm and I'm ready for a weekend to rest. I'm so tired and I slept a full 7 hours last night. I'm not in pain my stomach just feels uneasy I have a feeling it's the iron tabs that I have been taking. I'm at work and I'm so wishing I could go home. Need to talk to my boss because I would like to see if on Wednesdays I can work from home. The no commute and being able to be in bed I think will get me through Thursday and Friday.