Quick Question about TTC?

Hubby and I have been trying to conceive for almost six months now. I will be ovulating around December 9 until around December 13. I was wondering, what can increase my chances of getting pregnant this time around? I am taking prenatal vitamins with folic acid and zinc in them, I drink a lot of water, I have a low stress level. What else could increase our chances? Should we keep from having this week to increase hubby's sperm count? I'm sorry if I seem like I am rambling, but we just really want to see a BFP this time around.