Getting harder to stay positive

Been trying for 10 months. Me and my husband are both pretty young so at the start we just had unprotected sex thinking it would happened within a couple months.. That of course didn't happen. I went Google crazy and learn a lot of things I didn't know before. I started buying ovulation kits and taking vitamins, tracked and temped. So many of my friends are getting pregnant and it's getting harder and harder to be happy for them. This month is the last month we can try for awhile, my husband is going to go on deployment for a few months. I really want to give him happy news before he leaves! However my period is suppose to start in four days and I'm 93% sure its going to come. I have no signs I'm pregnant and every sign my period is coming. I keep telling myself to stay positive, its just so hard! The last few months I've started to cry every BFN I'd get.

I think he's leaving for deployment around my ovulation next month. So we might get one more month of trying before he leaves for 8 months. I don't think I'll be all that positive if it doesnt happen then.