One for the ladies! The last few months, I have had 'back to front periods', ie a few days of very, very light flow (barely anything) followed by two days of heavier flow then abrupt stop. This is the reverse pattern to the last 25 years! Still regular and this MAY have started after I took norethisterone to delay a period at the end of last year (or be entirely coincidental). I haven't been too bothered but wonder if it's worth getting checked out by GP? Any one else had this? (By the way, not on oral contraceptives or any other hormones).