Feeling let down

You know when you hear pregnant women say that they are sick and tired of being pregnant? Well I’m sick and tired of NOT being pregnant. I am 21 and have been ttc for a year now. I’m tired of doctors and negative tests.. I am to the point where I just cry when I see babies. I cry in the grocery store, I cry when a pampers commercial comes on, I cry at work when babies come in. I am exhausted. I don’t want to give up, but I just want something to work out. Someone give me some encouragement. Please.