As dear old AF did make her appearance yesterday (boo, hiss!), I am due to have 21 day bloods taken this cycle. As some of you know, I have only very vaguely regular cycles, in that they range between 26 days and 32 days with no real rhyme or reason. I have been reading up on the blood tests on the internet and noticed it said that should you not come on your period within 7 days after having blood test, then the test had to be repeated the following cycle. Is this what everyone else was led to believe too? Because if so, it will be like playing Russian roulette because I think the last time I had a nice, neat 28 day cycle was about 7 months ago. Will phone my doctors, but they are closed today for a training session Thanks for any help!