Anovulatory Cycles Explained
Learn the basics of anovulatory cycles and how they affect fertility in the menstrual cycle. Here at Natural Cycles we’re dedicated to closing the knowledge gap when it comes to reproductive health. Read on to learn about the causes of anovulatory cycles, their impact on ovulation and more.
What is anovulation?
Anovulation or an anovulatory cycle is a menstrual cycle with no ovulation. This means an egg cell wasn’t released by the ovaries which normally happens at the end of the first stage in the menstrual cycle, known as the follicular phase. Ovulation is necessary for conception, as pregnancy happens when sperm fertilizes an egg cell – so you can’t get pregnant when no egg cell is released. Anovulatory cycles are pretty common and most women will experience them throughout their fertile lifetimes. However, anovulation is most likely to occur in the adolescent years and around the menopause.
Symptoms of anovulatory cycles
Unless you are tracking your ovulation, you might be completely unaware that you have experienced an anovulatory cycle. Period tracking alone, may not be enough for you to identify an anovulatory cycle. However, there are a few things to look out for that may indicate you are having an anovulatory cycle. If your period comes late, or if you experience spotting mid-cycle, you might be experiencing anovulation. Anovulatory cycles are often longer than regular cycles. While it’s not technically a period, it can be difficult to tell the difference as there is usually still some bleeding in an anovulatory cycle. This is caused by a lack of the hormone estrogen.
Why didn’t I ovulate this cycle?
If you haven’t experienced ovulation this cycle, you’re probably wondering why. Anovulation happens when there is an imbalance of hormones. These are finely tuned to regulate the phases of the menstrual cycle. There are a number of factors that can lead to anovulatory cycles. If you’re concerned or are being impacted by anovulatory cycles, we recommend you talk to your doctor or gynecologist.
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Causes of anovulation:
- Severe changes to diet and/or exercise
- Prolonged stress
- Disruption to routine
- Existing medical conditions such as PCOS
Ovulation and birth control
This depends on the type of birth control you’re on. Hormonal birth control works by suppressing the hormonal changes which regulate ovulation. This means ovulation simply doesn’t happen when you use types of birth control like the pill or the hormonal IUD. Non-hormonal birth control doesn’t alter ovulation, instead, it either works by preventing the sperm and the egg cell meeting (as with a barrier method such as a male condom), or by finding the fertile window and avoiding unprotected sex on those days.
Cycle tracking and anovulation
Women who keep track of ovulation are more likely to notice irregularities and changes to their bodies, such as anovulatory cycles. Knowing your ovulation means you also have a better awareness of your fertile window and understanding your fertility is key to both planning a pregnancy and preventing one.
Since every woman is different, her cycle is different too. One way to know if ovulation has happened is to analyze temperature data. A rise in body temperature can confirm ovulation has happened. Because Natural Cycles works by analyzing basal body temperature, this means the app can let you know directly if you are having an anovulatory cycle. The app gives you a daily fertility status, as well as regular updates tailored to your cycle, such as PMS alerts and when to carry out a self-breast exam.