Last month i used clearblue fertility monitor, got 9 high days and 2 peak days so we did "BD" on one of the peak days, my af was due on Sunday instead it arrived on Friday but was bright red not heavy as usual and lasted only 3days (normally lasts 5-7days). Am now very confused and don't know what is happening with my body. can someone please put my mind at rest. Your advise is highly appreciated. xx