Michelle, it will happen for you I just know. Maybe not right now, but it will come. I undestand how down you must feel right at this moment.
A friend of ours had various help in order to conceive including a few IVF treatments. She is quite a bit older than me so that meant she was having these things done when it was all still fairly new. She had no success at all and resigned herself to being childless. Then out of the blue she fell pregnant naturally when she had all but given up hope. She then went on to have three very happy healthy pregnancies. I believe she was in her mid thirties (at least 35) when she had her first child.

Big hugs to you and I'm hopeful that we will all be following Deb very soon down that wonderful road known as impending motherhood.
Debbie