Hi all, started having unprotected sex 4 weeks ago in the hope we might get lucky. Have a cycle that runs like absolute clockwork (& has done for 13 years) 7 days on, 21 days off. Bizarrely this cycle, after 7 days on and 7 days off, I came back on again quite suddenly and for 5 days. Anyone got any ideas why this may have occurred/what this could mean? Gp said 'probably just one of those things' which was incredibly helpful (not)!