fertile window / husbands work schedule = not matching up

Alyssa
So my fertile window just started today, but negative OPK test so far... Our work schedules are just not matching up this week! I'm off today and tomorrow for Memorial Day. He goes in the evenings, so there's a chance there. But then he's not off until next friday and Saturday. By then the fertile window will be ending. I work during the days and he works during the nights. Anyone else have a similar situation? It makes BDIng soooo much more complicated!