Everything About Anovulation: Can You Get Pregnant with Anovulation?

What is Anovulation?

Anovulation is a common condition in which an egg is not released from the ovary. It is a common occurrence in women’s reproductive health. The condition is also known as an anovulatory cycle. In basic terms, anovulation is any condition that hinders ovulation. It is responsible for many infertility issues in women. It can affect anyone who is in the age range of 12-51. Thus, making it impossible for females to conceive. Some women may have no symptoms and a normal period but still not be ovulating.

What Causes Anovulation?

There are several potential causes of anovulation, but it mostly happens due to a hormonal imbalance. In the usual cycle, hormones in the brain tell the body to prepare to release an egg. This is when the ovary releases an egg into the fallopian tube.

If the egg fertilises within 12-24 hours after being released, it attaches to the uterine wall within 5 days, leading to implantation and subsequent fetal development. However, if the fertilisation doesn’t happen, the uterine lining sheds during the menstrual period. Here are some possible causes for anovulation -

• PCOS (Polycystic Ovarian Syndrome): PCOS causes irregular or no ovulation at all.
• POI (Premature Ovarian Insufficiency): This happens when the ovaries fail (usually before age 40).
• Hypothalamus or Pituitary Gland Dysfunction: These glands regulate hormones responsible for ovulation. Any disruption to these glands can lead to anovulation.
• DOR (Diminished Ovarian Reserve): As a person ages, the number of eggs keeps declining. But a woman with DOR has fewer eggs remaining than a woman without DOR.
• Hormonal Birth Control: The hormones in the birth control pills may also prevent a woman from ovulating.
• Chronic stress can hinder the body’s ability to produce hormones, which impacts the normal menstrual cycle.
• High levels of androgen (hyperandrogenism), which include testosterone, androsterone, and androstenedione, may cause anovulation.

Other possible causes include thyroid disorders (both overactive and underactive). It affects the hormonal signals that lead to ovulation. In addition, extremely low body weight, eating disorders, and increased physical activity may all cause periods of anovulation. Sometimes anovulation may also be associated with premature ovarian insufficiency.

What are the Symptoms of Anovulation?

It is important to understand the symptoms to stay aware of the condition. This also helps to keep track of the menstrual cycle. A short cycle (fewer than 21 days between periods) and a long cycle (more than 25 days between periods) can also indicate ovulation problems.

Here are some signs and symptoms of anovulation -

• Having Irregular Periods: The average menstrual cycle is 28 days, which can be a couple of days longer or shorter. But significant fluctuations may indicate anovulation.
• Very Heavy or Light Periods: A heavy period means losing more than 80 mL of blood during the period or lasting longer than 7 days. However, if the blood loss is fewer than 4 tablespoons, it is called a light period.
• Amenorrhea: Missing one or multiple periods in a row without being pregnant can be a sign of anovulation.
• Absence of White Cervical Mucus: Before and during ovulation, the vaginal discharge looks like raw egg whites. The texture is clear, slippery, and stretchy. If such discharge is absent, it may indicate that a person is having anovulation.
• Irregular Basal Body Temperature: A person's body temperature when fully at rest is called basal body temperature. When a person is ovulating, the basal body temperature slightly increases.

Also, it is important to remember that just because the period is regular, that doesn’t mean a person is ovulating. Hence, it is important to see a doctor so that a doctor can diagnose the condition.

Is It Possible to Get Pregnant With Anovulation?

As already discussed, anovulation means that the ovaries do not release an oocyte. And, as the union of the egg and sperm is necessary to conceive, it becomes biologically impossible to become pregnant without ovulation. This condition accounts for approximately 25-30% infertility cases in women.

Medical research consistently supports the “fertile window” theory. This posits that pregnancy can occur only during a 6-day window ending on the day of ovulation.

During an anovulatory cycle, the hormonal surge of LH (Luteinizing Hormone) does not reach the necessary threshold level or is completely absent. The hormone is essential and triggers the follicle to rupture. Without this, there is no egg released from the ovary into the fallopian tube for fertilisation.

Comparison of Reproductive States (Ovulatory Vs Anovulatory Cycle)

Is Anovulation Permanent?

Recent evidence in reproductive science clarifies that anovulation is a state, not a permanent status. It is important to distinguish between a single anovulatory event and chronic anovulation.

While the answer for a specific anovulatory month is "no," medical theories emphasise the following -

• Cycle Variability: Data suggests that even those with regular cycles may experience occasional anovulatory cycles. This does not reflect on future fertility.
• The "False" Period: Medical evidence shows that bleeding can still occur without ovulation. This is known as estrogen breakthrough bleeding. Many people believe they are fertile because they are bleeding, but without an egg, the cycle remains non-reproductive.
• Resumption of Fertility: Current theories state that as soon as the body resumes a regular ovulatory pattern. This means that if an egg is successfully released, the statistical chance of pregnancy returns to normal.

What are the Treatments for Anovulation?

There are many treatments that can balance and regulate the hormones to ensure a regular period. Some medications can increase the odds of getting pregnant, in case the cause of the anovulation is treatable.

Sometimes, certain medications, such as anti-epileptic drugs and antipsychotic drugs, can also cause anovulation. If a woman is trying to conceive, then the doctors may adjust or discontinue medications under medical supervision.

Other treatment options include -

• Human Chorionic Gonadotropin (HCG) Injections: This hormone stimulates the ovary to release an egg. However, it may cause false positives in pregnancy tests.
• Follicle-Stimulating Hormone (FSH) Injections: If the body isn’t producing enough FSH and other treatments haven’t been effective, the healthcare provider may prescribe an injection of synthetic FSH. This helps the ovary release an egg.
• Gonadotropin-Releasing Hormone (GnRH) Agonist and Antagonist Injections: GnRH agonist and antagonist injections help regulate luteinising hormone (LH). This prevents the spontaneous release of eggs during fertility treatments.
• Surgery: Doctors may suggest a minimally invasive surgery called ovarian drilling, which is done laparoscopically. The procedure involves using a tiny camera and requires a small incision. Then the ovaries are drilled, which reduces the amount of testosterone the ovaries produce. This helps the ovaries produce eggs each month and initiate a regular menstrual cycle.

In addition to these treatment options, doctors may recommend the following lifestyle modifications -

• Doctors may ask women with high BMI or obesity to lose weight.
• If a woman has a meagre body weight, then nutritional support can be beneficial for them to help them gain a healthy weight.
• It is also advised to reduce the frequency of heavy workouts for those who indulge in intensive workout sessions.
• If suffering from stress, anxiety, etc., it is advised to seek immediate help.
• Have a sustainable diet plan to attain a healthy weight and menstruation.

Do Infertility Treatments Help With Getting Pregnant in Anovulation?

Infertility treatments are highly effective for anovulation because their primary goal is to resolve the exact biological hurdle preventing pregnancy. The treatment mostly depends on whether the goal is to simply trigger the egg or to bypass the fallopian tubes completely.

Can Anovulation be Prevented?

It is nearly impossible to prevent anovulation. However, there are certain things a person can do to manage the condition, such as -

• Healthy Habits: It is advised to get enough sleep, eat nutritious foods, exercise moderately, and manage stress levels. These can help you regulate hormones and contribute to overall hormonal health.
• Track Menstruation Cycle: Keep a record of cycle length and symptoms. Note when and how much the bleeding is happening, and if there’s any change in the vaginal discharge. This can help identify any irregularities.
• Treating Hormonal Imbalances: If a person has PCOS or thyroid dysfunction, medication or other treatment can increase the chance of ovulation.

Conclusion

The biological reality of conception states that pregnancy cannot occur during an anovulatory cycle. As conceiving requires a sperm and an egg, and due to the absence of an egg in anovulation, getting pregnant is not possible. Even if all other reproductive factors are optimal, the "fertile window" remains closed if the ovaries do not complete the ovulation process. It is important to note that the condition is temporary and treatable.

There are several treatments available for the underlying causes. Doctors may prescribe medication for hormonal restoration and monitor using ultrasound and LH monitoring, while advising a balanced lifestyle management schedule and an optimised diet plan. In simple words, it can be said that anovulation stops pregnancy in the short term, but with medical guidance, it is a surmountable barrier to building a family.