hya,
I did go swimming 2 weeks after chemo finished ( 4 FEC and 4 TAX) wanted to get into the water before I had my operation felt great but picked up verucas, and toe nail infection.
Would not advise it until your immunity is back to normal level.
It's just yet another thing to deal with at a time when you do not need anything else !
Hugs
BerthaB