Feeling lost

For the last 3 1/2 years, my husband and I have been desperately ttc. At 19, I was told I may never conceive due to endometriosis. I have done rounds of clomid, lost weight, and even had surgery a month ago. I thought for sure this month was it. I FELT myself ovulate! We baby danced like we were supposed to and yet no positive test! I'm cramping, vomiting and my breasts are killing me. Do I just have myself convinced or could this be it?