Social Media announcements

So I have hit a really bad depression with TTC tonight. Hubby and I have been TTC 7 months during this time our friends/family have celebrated announcements and births all over fb and I do my best to handle it all and tell them all how happy I am for them and truly I am happy but then when they tell me how easy it was for them I envy them so bad that it's hard to speak to them a second longer. My husband and I have no children together but I have 2 kids from my previous marriage. I want to give him a baby so bad and feel like I never will.