Jealousy is killing me

I just found out that my friend that got married in september 28 is now a month and half pregnant.
While me been married and ttc since 3 years but never got pregnant .
Im happy for her but also this is unfair. ??im so heartbroken. Cant wait to finish work and go home to let it all out and cry... 
Also this week we found out that hubby has very low testosterone :/ if i aint gonna have a baby i dont want to continue living. My life wont make any sense with out a baby. ??