How to...

So me and my husband live in different states (military) and we've been trying since last August to get pregnant but I've had no luck :(....it would be his first and my third....I just got my IUD taken out last feb and my periods have always been regular ever since......I feel bad because I'm starting to think it's me, it's my body and he wants a child so bad and sometimes he beats himself up that it's him :(....I know we have a challenge considering we don't see each other everyday...but the times that he's down we try all the time and he was even down twice a couple of months ago....did anyone else go thru this phase? What are some tricks to get pregnant besides the obvious.....