I really need a friend or advice!

so me and my husband started trying to conceive for the first time...we already have a son but after 5 years tried again and this time is really hard. i was hoping i was expecting and i was so excited and happy i could feel it in my guts! i got my period this morning and no baby :( im so sad im devastated. i go on facebook and all i see is happy mothers expecting their bundles of love. I love my son to death...but i think i got really happy and excited with the second baby that when it didn't happen i took it to hard. ?