I just got my ring off this morning - after three days of detergent and water trying to get it off due to swelling! i spoke to my midwife yesterday when my swelling appeared worse (I am due on monday, have only just begun to swell), and she told me that swelling is generally only a problem if its combined with high blood pressure and protein in the urine - if you have all three then i think (not absolutely sure) then that points to pre-eclampsia, so def get your blood pressure checked - you may get some symptoms though without going to the docs - dizzyness, spots in vision etc. I have the swelling and protein, but without the high blood pressure its ok apparently hope this helps!