Not so much a rant

I've gained almost 30 lbs this pregnancy. (I'm 29 weeks) my dr cut me off all sodas, sweets, milk, sugar, etc. I'm still steadily gaining weight. I have no idea how. So of course I'm feeling extra large lately. To top it off, it seems hubby doesn't want to ever do the deed anymore. Before I get pregnant and all during the first trimester he wanted it 4-5 tomes a week. Now that my Sex drive is out the roof he seems not interested. I casually bring it up and he brushes it off or says its nothing he's just stressed. I don't get it. Any advice or similarity? I feel so unattractive and it's taking a toll on me, bad!