Definition of 2ww in English:

abbreviation

• Two-week wait (used particularly in online forums to refer to the two-week period before a pregnancy test is likely to be accurate after the transfer of an embryo into a woman's uterus in fertility treatment or a couple's attempt to conceive naturally)

  ‘I am in my 2ww after ICSI’

  ‘I was very lucky and conceived easily (drank throughout the 2ww as we weren't really trying)’