Feeling low and need support...

Tonight is one of those nights where the pain of not having a baby is so strong, I feel like I won't make it. The fear and "what if" of not ever conceiving overwhelms me. The wait for the next step in treatment consumes me. I don't need a baby to make me happy, but being a mother is the only thing I want more than anything else in this world...and if I can't have that, I don't know what I'd do!! Does anyone else feel this sometimes??