There are standard expectations of what a “normal” cycle is. These are based on averages from thousands of women’s cycles to estimate an expected norm. In fact there is signifcant variability between women and also between monthly cycles. It is perfectly normal for readings to vary from cycle-to-cycle. The ability to measure your personal hormone levels and the rate of change in the hormone level can help women understand their cycle and type of variance.
Why don´t I get the same readings every month?
