Cycle length

Pamela
I am on my second cycle of clomid 50m days three thru seven. My cycle length is irregular, but is normally between 34-46 days long, however my first cycle with clomid was 53 days, this one is on 46 with two negative tests. I am not being monitored. I guess my question is how can I shorten my cycle to a more normal length? I really just want my period or a positive!