It can happen when the egg implants or when their period was due. If you do experience any spotting or bleeding though you should get it checked out. 

Read more about bleeding in pregnancy here.


  1. National Institute for Health and Care Excellence, Ectopic pregnancy and miscarriage: Diagnosis and initial management in early pregnancy. London NICE, 2012
  2. Macdonald S, Magill-Cuerden J, Mayes’ midwifery, Edinburgh Bailliere Tindall Elsevier, 2012
  3. Royal College of Obstetricians and Gynaecologists, Early miscarriage: information for you, London RCOG, 2008. Also availabe at: (accessed 27 May 2014)
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    Last reviewed on August 1st, 2016. Next review date August 1st, 2019.

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