It can take up to a year or more to get pregnant, so don't be so worried that it hasn't happened yet. A couple isn't considered infertile until they've been unsuccessful for 18 months.
You can look up tips online (just make sure the websites are reliable looking). They'll say things about having him wear boxers, not having sex too often (target the right time and let him build up enough sperm for maximum success), and not being under stress. Remember, this isn't a job or a project. You are creating a beautiful life with someone you love. It will happen when it happens. Just be calm and enjoy the process rather than putting so much pressure on it.
I would also recommend that since you are trying to get pregnant, you should go to your OBGYN and get your prenatal vitamins and start taking those. You should also ask about any vaccinations you need to get before you get pregnant (some are very important for pregnant women, but some can't be given during the actual pregnancy).
Good luck.