What is perimenopause?
Perimenopause is also known as the menopause transition and is when the ovaries gradually begin to make less estrogen hormone. This usually begins in your 40s, but is individual and can occur earlier or later.
Can I use Natural Cycles if I am perimenopausal?
As a contraceptive, Natural Cycles may be less suitable for you if you have irregular menstrual cycles (i.e. cycles with length less than 21 days or greater than 35 days) and/or fluctuating temperatures as predicting fertility is more difficult in these circumstances. Natural Cycles’ effectiveness as a contraceptive is not affected by irregular cycles, but you will experience an increased number of red days, which can reduce your satisfaction with Natural Cycles. This can be the case if you have symptoms of menopause.
Will I ovulate?
During perimenopause you can still ovulate so there is a chance that you can become pregnant. If you are using Natural Cycles to prevent pregnancy you need to use additional protection (such as condoms) during red days.
How many red days will I have?
This is very individual. The app will be more likely to determine you might be fertile and give a red day if you have fluctuating temperatures and irregular cycles. Natural Cycles may not be the ideal contraception for you as you will receive many red days, during which you'll need to use a condom to effectively prevent a pregnancy.
Can I trust my green days?
Yes, you can trust green days you are given. Daily fertility is shown as red or green in the Today -view. Please be aware that predictions in the app can change based on the data you add, so you should check every day. The app will give you green days once it can confirm that you are not at risk of pregnancy. This is done by either confirming that you have ovulated, or that you will not ovulate in the coming 5 days (sperm survival). You can read more about how basal body temperature changes throughout the cycle here.
Does it affect my temperature?
Continue to measure first thing in the morning as usual. If you feel unusually warm when you wake up or feel you slept badly, you can add your temperature as deviating (a fluctuating temperature) and the app will disregard it.