Date	Event	Description
10 February 2015	Amended	Correction of some analysis graph labels.
28 November 2014	New citation required and conclusions have changed	Comparisions were restructured into a more logical framework. Clinical pregnancy rate data were used in this update rather than the undefined pregnancy rate data of the original review as this is more clinically meaningful when considering the evidence for use of antioxidants.
28 November 2014	New search has been performed	14 new studies were added in this update (Attallah 2013, Azizollahi 2013, Dimitriadis 2010, Eslamian 2013, Kumamoto 1988, Martinez‐Soto 2010, Morgante 2010, Nadjarzadeh 2011, Poveda 2013, Pryor 1978, Safarinejad 2011b, Safarinejad 2012, Sivkov 2011, Wang 2010). The search was updated in August 2014 and six studies were placed in awaiting classification (Anarte 2013a; Gopinath 2013; Iacono 2014; Nadjarzadeh 2014; Nashivochnikova 2014a; Nematollahi‐Mahani 2014).
7 December 2011	Feedback has been incorporated	Change of emphasis to conclusions, additional sensitivity analysis performed, Risk of Bias, Summary of Findings Table and Discussion sections edited to increase this review's focus on clinical outcomes of pregnancy and live birth.
3 May 2011	Amended	2.1 Analysis edited to fixed effect Peto. The conclusions remain the same.
8 March 2011	Amended	Changed summary of findings table to reflect quality of studies
21 December 2010	Amended	Minor edits made ‐ no changes to conclusions
4 May 2007	New citation required and major changes	Substantive amendment