He claims to be tired

So I’ve dating my hunni for 7 months now and i miscarried back in December. The problem is because of his work schedule he gets off after 6 and normally he gets to my place at 7. After showering we get in bed have sex for ten mins and that’s it!! He claims to be tired I understand he has to get up early for PT but dang I need more sex. Any suggestions on what I can do. My ovulation window is all next week and two of the days i have a higher chance of conceiving