Going mad...

We're only in to our second month of trying and I'm already obsessing. We got married in July and agreed to start trying straight away. I'm 28 and have been longing for a baby for the last few years. I was really disappointed last month when it didn't happen. My fertile week was over the wedding/honeymoon period so I thought it was perfect time to conceive, as we were both so happy and relaxed. We both get very stressed with our jobs and I knew it would be harder to conceive once we went back to work. Also, none of the sex was planned- it just happened naturally. Anyway, it didn't happen that month- no positive tests; just a period. 
I have just had my fertile week and I'm feeling really moody as we only had sex twice during that period. I worked the majority of it. My husband has a long commute to work, so is often too tired by the time he gets in to have sex... Same as me. I'm trying to keep it fun. I don't want him feel it's just sex for the sake of having a baby. 
I don't know how some of you ladies do it- trying for months/ years to conceive. I think I'll go mad if it doesn't happen soon. Sorry, I hope I'm not sounding insensitive to anyone reading this. I just want a baby so bad. Although we've only been trying 2 months, I've been waiting 3 years, since we got engaged to start a family. 
Everyone is telling me "Just have fun and go with it- it'll happen when it happens. Stop thinking about it." How am I supposed to stop thinking about it when I want it so badly. 
Anyway, sorry for the rant. I just wanted to put it out there to people who are in the same boat as me. X x x