baby sizes, Pregnancy Essentials

4 weeks pregnant

  • Once fertilised the egg starts to divide as it travels down the fallopian tube.
  • The lining of your uterus has thickened ready for the fertilised egg to implant into it.
  • A pregnancy test may now work as your HCG levels start to rise to prevent you from having a period.
  • You might also be experiencing some early pregnancy signs such as nausea and sore boobs.

Read more about the first trimester.

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Working with parents since 2002

Copyright: Janine Smith

This entry was posted in: baby sizes, Pregnancy Essentials


An experienced specialist in pregnancy, birth & early parenting, I have worked with parents since 2002. I am based in the North East so I regularly work with parents from Newcastle, Northumberland, Gateshead and across North Tyneside. Face-to-face sessions will continue with North East parents but digital courses and online sessions means I can work with parents everywhere.