hiya
I found this, not sure if its any help.......
An anovulatory cycle
An anovulatory cycle is when your body is unable to reach the oestrogen threshold necessary to trigger ovulation, so ovulation doesn't occur.
You can still have what appears to be a period when you're not ovulating, either because a fall in oestrogen levels triggers oestrogen withdrawl bleeding, or when the lining of the uterus builds to an unsustainable level and then begins to disintegrate. If you're not charting your temperature then you might not realise that you haven't actually ovulated.
It's more obvious that you're not ovulating when your periods stop altogether for a time, resulting on one, very long, cycle. Common causes of prolonged anovulation include illness, certain medical conditions, travel, stress, heavy exercise (usually athletes) or low body weight.
There are also certain times in your life when you might experience anovulation. The most obvious are pregnancy and the menopause, when ovulation stops altogether. Adolescent girls also often have anovulatory and irregular periods until their cycles settle down, and breastfeeding mothers are unlikely to ovulate, which is nature's way of helping to space pregnancies healthily.......
I would think its just a one off and everything will be back to normal next month
