TTC with a husband who is too tired...ugh

So my husband and I have been TTC since Nov 2015, after we had a miscarriage in OCT. I've been keeping track of my CM and periods, and have had no luck. But the last two months, my husband has not been willing to make love, have sex, when it really counts, ovulation. It is so discouraging. I understand why, he works 60+ hours, physical work, and I get why he wouldn't be in the mood.. but I swear, after I'm done ovulating, boom, his schedule clears up and can get down.. but it won't result in a pregnancy.

On another note, Glow got my hopes way way way up last month, saying g my period was due, and I didn't get it on that day. I am extremely regular, so I was convinced I was pregnant. Took tests for 3 days, all BFN, then started my period. I checked how many days Glow had my cycle, and it was off by 3 days. I learned I need to use my own calendar for period start date.