Missing my chance?

First time tracking my ovulation using OPKs and I've been testing like crazy. My cycle has always been weird so I'm trying to see if I'm actually ovulating or not, and my lines are FINALLY getting darker! But of course it happens on the one night that my husband won't be home until super late, after I'll probably be asleep. If we bd tomorrow, saturday, and sunday, that probably won't be too late, right? The bottom line isn't quite positive yet (the control line looks a bit darker in person) so I'm HOPING that we still have time and we won't miss our chance by not doing it tonight.

Any insights, tips, or opinions?