TTC and need advice.

Nadia
Husband and I made love 6 times during fertile period. We felt really confident this was it for us. Then all we got was a period that came a week early. It was really heart breaking and discouraging. We have been TTC for almost a year. Has this happened to anyone else?? Any advice would be helpful as we are about ready to throw the towel in and forget about having kids all together.