Is implantation bleeding normal in early pregnancy?
Answer From Yvonne Butler Tobah, M.D.
Implantation bleeding — typically defined as a small amount of light spotting or bleeding that occurs about 10 to 14 days after conception — is normal.
Implantation bleeding is thought to happen when the fertilized egg attaches to the lining of the uterus. Implantation bleeding usually occurs around the time you would expect to have a menstrual period. However, implantation bleeding is lighter than menstrual bleeding.
Some women don't experience implantation bleeding and others don't notice it. It's also possible to mistake implantation bleeding for a light period. If this happens, you might not realize that you're pregnant — which can lead to mistakes when determining a baby's due date.
Implantation bleeding is light, stops on its own and doesn't require treatment. If you're concerned about any vaginal bleeding or vaginal bleeding during pregnancy, contact your health care provider.
May 09, 2019
Yvonne Butler Tobah, M.D.
See more Expert Answers
- Norwitz ER, et al. Overview of the etiology and evaluation of vaginal bleeding in pregnant women. https://www.uptodate.com/contents/search. Accessed May 19, 2016.
- Moore KL, et al. Answers to clinically oriented questions. In: Before We Are Born: Essentials of Embryology and Birth Defects. 8th ed. Philadelphia, Pa.: Saunders Elsevier; 2013.
- Frequently asked questions. Pregnancy FAQ038. Bleeding during pregnancy. American College of Obstetricians and Gynecologists. https://www.acog.org/Patients/FAQs/Bleeding-During-Pregnancy. Accessed May 20, 2016.
- American College of Obstetricians and Gynecologists. Months 1 and 2. In: Your Pregnancy and Childbirth Month to Month. 6th ed. Washington, D.C.: American College of Obstetricians and Gynecologists; 2015.