7 Weeks - Tired as can be

SO tired I can't keep my eyes open. Yesterday I almost nodded off behind the wheel. I'm starting to get anxious about my appointment which is still 3 days away. I am again thinking we'd have bad news. My only symptoms are sore boobs and sense of smell (and tiredness is related I think), and these too come and go. My waist is expanding. I don't fit into many of my regular pants. Hoping that is a good sign!! I haven't had the urge to test or temp in 5 days, which is the most I've gone since the BFP.