Britney said it best. She's kind of a pro, IMHO.
I would also +1 Britt's suggestion to chart. It really does help you figure out what's going on with your lady bits. You don't have to check your CP, you could just temp and check CM and that would be accurate enough. And I don't understand why a man would be freaked out by this kind of thing. It's very much rooted in scientific study and has been helping women get pregnant faster for generations now. And for much longer than that, women have been paying attention to their fertility signs to either conceive or prevent conception. I guess what I am trying to say is that perhaps if your DH understands the mechanics behind charting, maybe he won't feel so weirded out by it?
Another suggestion would be to have "fun" when you BD. Relax, fool around like teens, enjoy the moment, make sure you get a big O after he does because that is supposed to help get the swimmers where you want them to go. Other than that, there are no secrets. If there were, I would have found them by now and I for sure would have gotten preggers a long time ago.
GL and I HTH you get a

very quickly!!!