Light pink or brown spotting about a week before your period can be an early sign of pregnancy. Here’s how to tell it from your period, what else it might be, and when to get help.
Implantation bleeding is light spotting that can happen when a fertilized egg attaches to the lining of the uterus, usually 6 to 12 days after ovulation, around the time your period would be due or a few days earlier. It’s typically pink or brown, very light, and lasts a few hours to two days, with no clots. Not everyone has it, and many pregnant women never notice any. Because it can look like the start of a light period, the most reliable way to know is a pregnancy test, ideally from the day your period is due.
What implantation bleeding looks like
- Color: light pink or brown, rather than the bright or dark red of a period
- Amount: spotting, usually just a few drops on underwear or tissue, not enough to fill a pad
- Length: a few hours to two days
- Texture: no clots
- Other feelings: sometimes mild cramping. See cramps but no period.
When does implantation bleeding occur?
Implantation usually happens 6 to 12 days after ovulation. In a 28-day cycle, that’s roughly days 20 to 26, often a few days before your period is due. That timing is why it’s so easily mistaken for an early, light period. If you’re not sure when you ovulated, see how to know if you’re ovulating.
Implantation bleeding vs period
| Implantation bleeding | Period | |
|---|---|---|
| Timing | 6 to 12 days after ovulation, often a few days before your period | Around the expected day |
| Color | Light pink or brown | Bright to dark red |
| Flow | Spotting; doesn’t get heavier | Gets heavier over a day or two |
| Length | Hours to 2 days | Usually 3 to 7 days |
| Clots | No | Can have clots |
| Cramps | Mild or none | Often stronger |
Implantation bleeding vs miscarriage
| Implantation bleeding | Miscarriage | |
|---|---|---|
| When | Before or around a missed period | Usually after a positive test, most often in the first 12 weeks |
| Bleeding | Light spotting that stays light | Often heavier, red and increasing, sometimes with clots or tissue |
| Pain | None, or mild cramps | Often stronger cramps, or back pain |
A positive test followed by a late, heavier period can be a very early loss called a chemical pregnancy.
When to take a pregnancy test
Tests detect a hormone (hCG) that starts rising only after implantation. Testing too early can give a false negative.
- For the most reliable result, test from the day your period is due.
- If it’s negative but your period doesn’t come, test again in a few days. See a missed period with a negative test.
Other causes of light spotting
- Ovulation spotting, around the middle of your cycle
- After sex or a pelvic exam, from a sensitive cervix
- Hormonal birth control, especially when starting or after missed pills
- An infection, often with unusual discharge or itching
- The start of a light period. See why is my period so light?
When to get help
Get urgent care for:
- heavy bleeding, soaking a pad in an hour
- severe pain, especially on one side
- pain in the tip of your shoulder
- dizziness or fainting
These can signal a pregnancy outside the womb (ectopic pregnancy), which needs emergency care.
Contact your doctor or midwife for any bleeding after a positive pregnancy test. Light spotting in early pregnancy is common and often harmless, but it’s always worth checking.
If you’re trying to conceive
Waiting to find out can be one of the hardest parts of trying. Our guide to how long it takes to get pregnant explains what’s normal at each age.
If you’ve been using Fertility Nourish, stop once pregnancy is possible or confirmed.
Reviewed October 2026. Author: Qingcai Wang, MD, PhD, founder of Five Essences. General education only; continue your medical care.
Sources: ACOG: bleeding during pregnancy; Cleveland Clinic: implantation bleeding.