Am at my wits end trying to find a contraception that works for us 
We don't have sex a lot so I only need something for every now and again. Can't take hormones due to depression and weight gain. Don't want another coil. Don't want merina either. Condoms make him lose his erection as he's getting older now. Sterilisation would be best but he won't get a vasectomy.
I am now wondering about getting a cap or diaphragm.
Any experiences of these?