My period only lasted 3 days; could I be pregnant? The Truth!

My period only lasted 3 days; could I be pregnant?

My period only lasted 3 days; could I be pregnant? No, it is not possible to have a period while pregnant. Pregnancy causes the body to produce a hormone called progesterone, which makes the uterine lining thick and prevents bleeding.

So, if you have a short period lasting only three days, it is likely due to something else such as stress or changes in your diet or exercise routine.

If you are concerned about being pregnant, you should take a pregnancy test to be sure.

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 What if I have intermittent vaginal bleeding?

Yes, you may be pregnant if you are experiencing intermittent vaginal bleeding.

Vaginal bleeding can signify many things, including implantation bleeding (when a fertilized egg attaches to the uterine wall), early miscarriage, or ectopic pregnancy.

If you are concerned that you might be pregnant, it is best to take a home pregnancy test or see your doctor for a blood test to confirm.

If it turns out that you are pregnant, make sure to schedule an appointment with your obstetrician as soon as possible for prenatal care.

Causes why your period lasted only three days

There are many potential causes of a period that lasts only three days. Some of the most common include:

1-Hormonal imbalance 

This hormonal imbalance is often the result of stress or other changes in your life. However, it can also be caused by a thyroid disorder or other hormonal problems.


An infection can cause your period to become shorter or lighter than usual. This problem may accompany other symptoms such as fever, pain, or discharge.

3-Poor diet 

A poor diet can cause problems with your menstrual cycle and lead to a short period. Eating balanced and healthy meals can help to regulate your cycle and ensure that you have healthy periods.

4-Uterine fibroids

Uterine fibroids are non-cancerous growths that can form in the uterus. They can cause several symptoms, including a shorter period.


Menopause is a natural process that typically occurs in women around 50. It can lead to changes in your body, including a shorter period.


Stress can cause several problems in your body, including a short period. Reducing stress through relaxation techniques or therapy can help to improve your menstrual cycle.

7-Birth control and other medications

Several medicines can affect your period's frequency, length, or flow. For example, hormonal birth control pills, shots, and intrauterine devices (IUDs) can cause shorter and lighter menstrual cycles.

Birth control pills contain hormones that can make the lining of your uterus thinner. That can make your period shorter and lighter.

According to the Cleveland Clinic, some women who take progestin-only pills may have bleeding between their periods. Other medicines that may affect your period's frequency, length, or flow include antipsychotics or antidepressants, blood thinners, herbs such as ginseng, steroids, and tamoxifen (a medicine used to treat certain types of breast cancer).

8-Too much exercise

Too much exercise can lead to a condition called "female athlete triad." This triad comprises three conditions: energy deficiency, amenorrhea (lack of period), and osteoporosis.

The female athlete triad often starts with too much exercise. Unfortunately, this can lead to energy deficiency when you're not consuming enough calories to match your energy.

The lack of period is due to low levels of estrogen. That can lead to bone loss and osteoporosis.

You must see a doctor if you're a female athlete and you're not getting your period. The female athlete triad is a severe condition that can be reversed if it's caught early.

9-Thyroid disease

Thyroid disease can cause many problems, including a shorter period. That is because the thyroid gland helps to regulate many of the body's processes, including menstruation.

If you have any symptoms of thyroid disease, such as fatigue or weight changes, you should see a doctor.

10-Polycystic ovary syndrome (PCOS)

PCOS stands for polycystic ovary syndrome. It is a hormone imbalance that can stop ovulation from happening. As a result, you might have no period or just a brief one.

Other symptoms of PCOS can include fatigue, mood swings, excessive facial hair, a deeper voice, and infertility.

If you think you may have PCOS, it is essential to talk to your doctor. Unfortunately, there is no cure for PCOS, but there are treatments that can help manage the symptoms.

With proper treatment, you can live a healthy and happy life.

11-Pelvic inflammatory disease (PID)

PID is an infection of the reproductive organs. It can cause a short period or no period at all.

Other symptoms of PID include pain in the lower abdomen, fever, chills, and an unusual vaginal discharge.

If you think you may have PID, you must see a doctor as soon as possible. If left untreated, PID can cause infertility.


Her periods may be irregular for the first few years after a young woman starts menstruating.

Cleveland Clinic states that periods may become irregular during perimenopause, which can happen 8 to 10 years before menopause.

Estrogen levels start to drop during perimenopause, causing irregular periods.

13-Other conditions that cause irregular o shorter periods

A few less common conditions may cause irregular or shorter periods.

These include premature ovarian failure (POF), cervical stenosis, Asherman syndrome, anemia, pituitary disorders, and uterine or cervical cancer.

Each condition affects reproductive health in different ways, but they all can lead to changes in the length and regularity of menstrual periods.

Anyone who experiences irregular periods should consult with a doctor to rule out any underlying health conditions.

We can manage many of these conditions effectively with proper diagnosis and treatment.

The bottom line

If you're concerned about your shorter period, make an appointment with your doctor.

They can help you determine the change's triggering and start treatment if needed.

Shortened or lightened periods can have various causes, from stress to hormonal changes. However, three days of irregular bleeding may also signify pregnancy.

Though it is impossible to have a period while pregnant, some women may experience implantation bleeding in early pregnancy.

That usually occurs when their period would have been due and may last one to two days.

If you think you may be pregnant or are experiencing any other unusual changes in your body, it's always best to consult with a healthcare professional.

They can help you get to the bottom of what's happening and start any necessary treatment.

DISCLAIMER: does not provide medical advice, examination, or diagnosis.

Medically reviewed and approved by Nataniel Josue M D.