I don't even know

I'm 20 weeks pregnant right now and normally am tired throughout the day, I'm getting used to dealing with it. Well, I only got about 2 hours of sleep last night and woke up this morning with all over body aches, a cough, and severely swollen glands. I wasn't feeling too great the last few days but carried on. 
Now my SO is pissed off at me because I told him that I'd rather not have sex when I feel this shitty. 
Am I wrong for this? I don't even know if I have something contagious and can't get into my doctor until Friday morning.