How would I know if there was something wrong with my cycle pregnancy?
There are various indicators that there might be something amiss with your menstrual cycle. These include a sudden lack of periods (especially if you have just come off the pill), a change in the regularity of your periods with lots of fluctuations from one month to the next, or if you start to experience a lot of pain.
If anything changes in your cycle, you should talk to your GP who will probably arrange for tests to be carried out. These will include a full blood test, as well as individual blood tests at different points during your cycle measuring levels of FSH, LH, thyroxine, and progesterone (see pages 141-142 for further details).
Another problem indicator to get checked out immediately is any spotting during your cycle (34), as in some cases this could indicate cervical cancer.