Anyone else got one? Is it bad for TTC? It isn't always 21, sometimes it is 23 or 24 but never more than that and much more usually on the shorter end. I'm not TTC right now but I'm 30 and am keen to get everything in good working order (as far as possible) now while I can before I am TTC in a year or two. I have been off hormonal contraception for a year having been on it more or less non stop since 17. Grateful for your advice and experience, especially those who have conceived on a very short cycle!