Trying to stay optimistic

I may just be super impatient but it's been 8 months && still I'm not pregnant. It's so hard seeing all the happy baby news on social media & from close friends and family. I'm happy for the women around me becoming pregnant but I'm jealous too (which I never say to them ever). I feel like a failure every month I start my period and my husband is so positive but I kinda feel like he is disappointed at the same time (which he would never say) im just emotional today. Maybe I'll be lucky and I won't start my period in 2 days like I'm suppose too. I'm just trying to stay as postive as I can. One of my best friends always says "you can only have sex so much & the rest is up to God"