I found that with both my wedding and my engagement rings on, my finger was swelling and becoming painful by about 8 weeks. I was also scared that if I left it on too long I would have to get it cut off and I wasn't in for that! So I took just my wedding ring off and it relieved the pressure enough to keep wearing my engagement ring (I chose to keep on the engagement ring as diamonds are far more valuable than a plain gold band!!). But I will go by my instinct as to when the right time is to take off the engagement ring. Probably if I can't get it off a couple of days in a row I will take it off and put it on a chain. But also bear in mind that we are in the heat of summer so our hands will be swelling more now than in a few months time when the weather gets cooler. So that may mean that I may get away with my engagement ring a little bit longer!