8 months of trying!!!

Its been 8 months since me and my partner first started trying for a baby. We absolutely love kids. Every time the witch would come around that time of the month, we'd get devestated. This month though, i start my period in 3 days. I am not cramping at all, and usually i cramp about 10 days before it even starts.. nothing this month. Im trying not to get my hopes too high but i just have that feeling.... any advice on why it takes so long?