TTC when you've got a nasty cold!

Ladies, I don't know about the rest of you; but, TTC when you're sniffly, sneezy and overall, just gross isn't as bad as I thought it would be; I find sex while sick to be actually quite therapeutic and comforting. Knowing that my fiancé still finds me attractive while I'm a sickly mess is nothing more than flattering and gives me those warm and fuzzies while I'm trying to quickly recover. What about y'all? Is sex while sick, especially while TTC, a no no? Does it depend on your energy levels? Or does nothing stand in your way, not even an icky cold or flu?