NHS website says that 'You can take your baby swimming at any age, both before and after they have been vaccinated. It doesn't matter if they haven't completed their course of vaccinations yet.
The management of some leisure facilities may suggest that babies shouldn't go swimming until they have had all of their jabs. However, this advice probably dates back to when
polio was common and people were concerned it could spread in busy places like public swimming pools. There hasnt been a case of polio reported in the UK for over 10 years. '
http://www.nhs.uk/chq/Pages/1035.aspx?CategoryID=62&SubCategoryID=63
Im planning on taking LO this week or next xx