HELP!?

My husband and I have been TTC naturally for over two years now and Im really down! Stressing a lot about my body not being able to do what it's supposed to! Well, this month has been different.. I had a very crazy dream and even woke myself up gagging. Then AF Was due today but nothing but very very light brown spotting. I don't know what any of these mean? Neither has happened before and also some moderate cramping on and off for about two weeks along with very sore breasts. Opinions ?