How many days before your period do you have implantation bleeding

What Is Implantation Bleeding?

Implantation bleeding is light bleeding from the vagina that happens in some women 10 to 14 days after conceiving a baby.

You may think it’s just a light period, but it’s an early sign of pregnancy. It’s not dangerous, and you don’t need treatment.

But heavy bleeding (more than you’d have with a typical period) can be a sign of a problem. Call your doctor if you bleed a lot, with or without fever, chills, or have cramps that get worse. 

When Does Implantation Bleeding Happen?

After a sperm fertilizes your egg, the combination becomes an embryo. It travels to your uterus, where it implants itself into the lining.

Sometimes, as the embryo attaches, it causes a little bleeding.  This usually happens about the time you would have your period. You may even confuse it with your period and not realize you’re pregnant. Implantation bleeding is normal and doesn’t mean you or your baby will have problems.

Implantation Bleeding Symptoms

Implantation bleeding tends to happen before you notice morning sickness. You might have:

  • Blood that’s brown or pinkish
  • Blood that’s lighter in flow and doesn’t last as long  as your period
  • Mild or no cramping
  • Unlike your period, you won’t see any blood clots or tissue in the blood

It’s probably implantation bleeding if you have some of the other signs of early pregnancy, including:

  • Tender, swollen breasts or nipples
  •  Fatigue
  •  Headache
  •  Upset stomach
  • Vomiting (morning sickness)
  • Food cravings or aversions
  • Mood swings
  • Peeing more than usual

If you’re not sure whether you’re having implantation bleeding or your period, take a pregnancy test or talk to your doctor.

How Long Does Implantation Bleeding Last?

Unlike most periods, it usually stops after 1 or 2 days.

Implantation Bleeding Treatment

It will stop on its own. If you're worried that you've bled a lot, call your doctor. They may want to know how much blood you saw and what color it was.

Other Causes of Bleeding During Pregnancy

Many things can cause bleeding in pregnant women, some of them harmless and some serious. If you’re bleeding a lot, with or without pain or cramping at any time, call your doctor.

If you’re pregnant and see blood in your underwear, it may be caused by:

Sex. Hormonal and physical changes may be to blame for this. It should stop on its own.

Fibroids and polyps. Your doctor might do some tests to check for these growths on your uterus.

Cervical problems. Conditions like infection or growths on your cervix can also cause bleeding.

Infection. Sexually transmitted diseases like trichomoniasis can cause light bleeding as well as more serious problems. Starting treatment as soon as possible will keep your baby healthy.

Ectopic pregnancy. This is when an embryo implants outside your uterus. You may have bleeding with pain and cramps. It’s dangerous and needs medical care right away.

Miscarriage. About 15% of known pregnancies end during the first few months. Most women bleed and cramp afterward. Call your doctor right away if you know that you're pregnant and you have these symptoms.

When to See a Doctor

Call your doctor if the bleeding doesn’t stop after a few days or if you’re worried about how much you are bleeding. 

How many days before your period do you have implantation bleeding

  • Introduction
  • What is implantation bleeding?
  • Implantation Bleeding vs Periods: Difference between implantation bleeding and period
  • How to recognize implantation bleeding?
  • Final thoughts

Introduction

Your period date is close and you notice light bleeding in your underwear. But instead of the colour red, the blood is pinkish-brown? Congratulations, you might be pregnant. Women trying to conceive a baby might confuse this happy sign of early pregnancy for period onset but we’re here to explain to you why implantation bleeding might look similar but is completely different from menstrual periods. 

In this blog, we look at understanding what implantation bleeding is, what causes it, the symptoms of implantation bleeding to help you differentiate it from a period and what should you do next. 

Implantation bleeding — typically defined as light spotting or a small amount of bleeding that occurs about 10 to 14 days after conceiving a baby — is a normal sign of early pregnancy.
Implantation bleeding happens after a sperm fertilizes your egg which implants itself into the lining of the uterus to become an embryo, causing a little bleeding. 

Since this usually happens around the time of your menstrual cycle, you may confuse implantation bleeding for a light period and not realize you’re pregnant. 

Implantation Bleeding vs Periods: Difference between implantation bleeding and period

Since women have different kinds of blood flow during their menstrual period, it’s hard to point out exact differences between implantation bleeding and a period. However, there are three key differences women can use to differentiate an implantation bleeding from a period:

  1. Colour
    Whether you have a heavy or light menstrual flow, most women are familiar with the colour of their blood during usual periods. Unlike the light or dark red blood seen in periods, implantation bleeding is typically light pink to dark brown (rust-coloured) in colour.
  2. Clotting
    Some women experience clotting in the expressed blood during their menstruation, while others do not see much clotting at all. Implantation bleeding, however, has no clots in the expressed blood.
  3. Amount
    Regardless of experiencing a heavy or light flow, most women can fill pads and tampons during their periods. With implantation bleeding, however, it is usually only spotting or a light flow. Most times, it’s just a little pink or brown discharge, rather than a full flow, just enough to get on a pantyliner.

How to recognize implantation bleeding?

Some of the other early signs of pregnancy may overlap with implantation bleeding symptoms, so take a pregnancy test or consult a doctor if you notice any of the following signs:

  1. Mild cramps (less than a normal period cramp)
  2. Exhaustion/ weakness
  3. Mood swings
  4. Headaches
  5. Nausea (morning sickness)
  6. Upset stomach
  7. Absence of blood clots or tissue in the blood 
  8. The implantation bleeding colour is brown or pinkish instead of red or dark red
  9. Tender, swollen breasts or nipples
  10. Food cravings or aversion
  11. Frequent urination

Implantation bleeding is one of the important early pregnancy symptoms and tends to happen before the onset of morning sickness. Implantation bleeding timing isn’t as long as your period and it’s lighter inflow. Women who are expecting their first pregnancy are more likely to spot or bleed than women who are used to egg attachment.

Final thoughts

All in all, implantation bleeding timing lasts for anywhere between a couple of hours to three full days and has a very light blood flow, sometimes even a light discharge. Unlike period blood that’s bright or dark red, implantation bleeding colour is something between pink and brown. 

Women experiencing implantation bleeding may experience other early symptoms of pregnancy like morning sickness, lower backaches, mild or no cramps, tender breasts and others. But many of these can also be PMS symptoms or ovulation symptoms and you may not be pregnant. 


If you’re not sure whether you’re having implantation bleeding or your period, it’s best to take a pregnancy test or talk to your doctor. Pregnancy tests can be taken at home using urine pregnancy test kits or you can book a blood test for pregnancy from the lab. It may be difficult to detect a pregnancy too early after conception, hence chances of false-negative results exist. There can be multiple reasons for irregular, missed periods or spotting. Consult a doctor for the best advice and understanding of the way forwards. 

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Disclaimer: The information included on this site is for educational purposes only and is not intended to be a substitute for medical treatment by a healthcare professional. Because of unique individual needs, the reader should consult their physician to determine the appropriateness of the information for the reader’s situation.Resources

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How many days before period is due is implantation?

Implantation bleeding tends to occur during the week before you would expect your period, or about six to 12 days after conception. This is around the same time a fertilized egg would be attaching itself to the uterine lining.

Can implantation happen a few days before your period?

The fertilized egg then implants into the uterine wall around days 22 to 26 of your cycle. If your body follows a 28-day menstrual cycle, you won't get your period until after day 28. So, if you're bleeding earlier and lighter than normal, there's a good chance it's implantation bleeding, not your period.