feeling defeated.

I feel so defeated lately. I want nothing more right now then to be a mommy. There are so many people around me who are pregnant right now. Don't get me wrong I'm very happy for them but I can't help feeling sad that it's not me. I try to put on a happy face but it is really hard sometime. 
Me and my husband really haven't been trying that long. Just since August. Inhave been ready for a baby since we got married two years ago but he just recently wanted to start try.  With his occupation our schedule are opposite. I work during the day and he works at night. So it's really hard to find time to even try to have a baby.  
I'm currently going on 42 days in my cycle. I took a pregnancy test the day before my period was due but it was a bfn. If I don't get my period soon then I'm going to take another test and make an appointment with my doctor. 
Sorry for the long post. But I just needed to vent. I don't feel like I have anyone I can talk to about this with. Thanks for ready. Any advice would be appreciated.