Nothing is working??

I've had biochemical pregnancy in Jan and after that 6 months later I'm still trying. My husband and I are pretty much ready for a baby and have been very clear about when to have sex or not. Point is that we've been really careful but still no results. I'm tired of seeing negative results and i have a feeling this month too my periods are going to start tommrow. I took the test but it came out negative and i don't know how do i tell this to my husband AGAIN.