Is brownish discharge a sign of pregnancy

When you're trying to conceive, it's hard to wait the two weeks or so between your fertile days and taking an at-home pregnancy test. During this period of anticipation, it's natural to interpret the slightest change in your body as a possible sign of pregnancy. The only thing worse than getting your hopes up because you feel a little more tired or out of breath than usual, is to mistake implantation bleeding for your period and assume you're not pregnant. So what color is implantation bleeding? It's time you learn to tell the difference between this early sign of pregnancy and your regular menstrual cycle.

Over email, Romper interviewed three OB-GYNs about implantation bleeding. Their descriptions each differ slightly, but all agree that implantation bleeding is lighter in flow and a different color than your regular period. It's "usually brown," says Miao Crystal Yu, OB-GYN at Saddleback Medical Center in Laguna Hills, California. Yu elaborates that implantation bleeding is "a little bit of brownish spotting that occurs when the embryo implants." This matches the characterization Gerardo Bustillo of MemorialCare Medical Group in Fountain Valley, California, gives implantation bleeding, too. According to Bustillo, implantation bleeding doesn't necessarily have a specific color, but "generally the spotting or bleeding is light." OB-GYN Yen Tran of Orange Coast Medical Center in Fountain Valley, California, adds that implantation bleeding may look like "pinkish/rusty old brown bloody discharge."

To distinguish implantation bleeding from a normal period, it's helpful to understand the process behind it. According to Tran, "After fertilization occurs in the fallopian tubes around the time of ovulation, the embryo travels down the fallopian tube to attach to the wall of the uterine cavity. During the attachment progress, some blood vessels break down." The broken blood vessels lead to the old blood (i.e. brownish) spotting you may find in your underwear. However, Bustillo notes that implantation bleeding "remains an unproven hypothesis" and "does not occur in the majority of pregnancies."

Timing is also important when you're trying to pinpoint the cause of bleeding. Bustillo and Tran say implantation bleeding occurs approximately 10 to 14 days after conception, while Yu gives an earlier estimate of three to seven days post-conception. Since your period isn't due until about two weeks after ovulation, you can probably guess implantation bleeding if you experience light spotting much earlier than that. It can be harder to guess if the bleeding overlaps with when you expect your period. Luckily, there are other differences to help you compare a normal period with implantation bleeding.

When asked how a woman can tell whether she is experiencing implantation bleeding or a regular period, Yu says, "Implantation bleeding is much lighter, usually lasting one to two days, not requiring the patient to change pads. If in doubt, talk to your OB-GYN and confirm the diagnosis with blood work or ultrasound." Bustillo also notes that a pregnancy test may be the best way to confirm the cause of your bleeding. "Implantation bleeding, when it does occur, coincides with the time of an anticipated menses. Therefore it can be confusing to know exactly what is going on. Generally, implantation bleeding is spotting only, while a menstrual period is heavier. If the bleeding is accompanied by potential early pregnancy symptoms such as fatigue, nausea/vomiting, and frequent urination, a pregnancy test would be indicated to solve the dilemma."

Finally, Tran agrees that implantation bleeding is usually shorter than menstruation and may be accompanied by early pregnancy symptoms. "Most periods last about four to seven days [and are] heavier with a bright red color blood, whereas implantation bleeding comes a few days sooner than the next expected period and only lasts for a few hours to two days only, along with signs like breast tenderness, mild cramping, headache and mild nausea."

Having small amounts of brown discharge during pregnancy is common and usually isn't concerning. However, it is possible that there are other issues going on, like infections, pH changes or cervical dilation.

In early pregnancy, scant amounts of light-colored, mucus-like discharge is typical and usually not worrying, but dark discharge with a foul odor may indicate more serious concerns.

In any case, you should report your findings to your obstetrician. He or she will assess you and order testing to determine the cause of the discharge and to start indicated treatment promptly.

Main causes for brown vaginal discharge

Fluctuations in vaginal pH can result in small amounts of brown discharge. This is typically not concerning, as it usually lasts for 2 to 3 days and resolves spontaneously.

Brown discharge in scant amounts can also occur in pregnant women, particularly after performing any physical activity (e.g. working out, climbing stairs with shopping bags, or after moderate-level house chores like cleaning).

It is important to note, however, whether the discharge is dark, has a foul odor, or causes any burning or itching, as these symptoms may this may indicate a more serious problem like:

  • Infection (like sexually transmitted infections, which pregnant women are at increased risk for)
  • Possibility of miscarriage
  • Ectopic pregnancy (which is usually also accompanied by severe abdominal pain and blood)
  • Cervical infection

Darker discharge in large amounts or heavy bleeding, especially in later pregnancy, is more likely associated with complications like premature delivery or rupture of the amniotic sac. It's important to contact your obstetrician whenever you see dark discharge, even in small amounts. He or she will likely perform an ultrasound to ensure your health and the baby's. Learn more about common symptoms of miscarriage that you should be aware of. 

When is brown vaginal normal?

Small amounts of brown discharge that ranges from fluid to mucus-like consistency is common, particularly in the early stages of pregnancy. It is also normal to have some dark discharge following sexual intercourse.

Symptoms that can accompany brown discharge and shouldn’t be ignored include vaginal itching, foul odor and cramping. These signs don’t always indicate something serious, but it is better to be cautious and to contact your doctor.

Dark brown discharge resembling coffee grounds may indicate loss of old blood, and should be reported immediately to the obstetrician. If you are nearing the end of pregnancy, and notice that discharge is heavy and light brown with a few streaks of blood, it may be a mucus plug, indicating that you will go into labor soon.

Treatment for brown discharge during pregnancy

If an infection is confirmed, treatment can be started using medication like antifungals (for treatment of a yeast infection) or antibiotics (for treatment of a sexually transmitted infection). However, if an infection has been ruled out, your doctor may just recommend rest and avoidance of any strenuous activity.

Regardless of the cause, you can help to prevent the occurrence of brown discharge by:

  • Avoiding the use of soaps with moisturizing cream or antibacterial/antifungal agents
  • Performing vaginal douching only at the advice of your gynecologist
  • Ensuring underwear fabric is light, loose and made of cotton
  • Avoiding use of softeners or bleach on underwear
  • Washing underwear with a mild soap and water
  • Avoiding use of panty liners
  • Ensuring you do not wash the genital area more than twice a day, as this can decrease the natural-occurring bacteria that helps to protect you from infection

Is brown discharge a sign of pregnancy?

Brown discharge may be a sign of pregnancy, but it isn’t always the case. The color of menstrual blood can vary depending on the cycle day and on the woman's flow. For example, menstrual flow usually slows in the last days of menstruation, and because it takes longer for the blood to travel, it can become more concentrated and darker in color. Read more about brown discharge before a period and what it means. 

Even if your period is late, although your may suspect pregnancy, dark discharge may indicate early or incomplete shedding of the endometrium (which lines the uterus). Regardless, a thorough examination by your doctor is recommended. Understand what brown discharge can mean and what you should do. 

What does Brown discharge look like in early pregnancy?

Bleeding – light bleeding early in pregnancy is fairly common, and does not mean you will have a miscarriage. Brown discharge: This may look like coffee grounds. This “discharge” is actually old blood that has been in the uterus for a while and is just coming out slowly.

How early in pregnancy do you get brown discharge?

The blood might be bright red or a brownish discharge, continuous or intermittent, light or heavy. It could start as early as six weeks into your pregnancy or as late as 12 weeks.

Should I take a pregnancy test if I have brown discharge?

Pregnancy But if you experience brown spotting or bleeding, recently had unprotected sex and your period is late by more than a few days, it's a good idea to take a pregnancy test.

What kind of discharge is a sign of early pregnancy?

But most pregnant women will secrete sticky, white, or pale-yellow mucus early on in the first trimester and throughout their pregnancy. Increased hormones and vaginal blood flow cause the discharge. It increases during pregnancy to prevent infections as your cervix and vaginal walls soften.