A.S.
There is always a diaphragm.....I tried it and it is messy and a little inconvenient...and you have to be comfortable enough with your body to insert it (it's not hard to do, just some people seem to not like messing with things down there). But it is simple, effective and hormone free.
There is an IUD that is completely hormone free...that is the Paraguard copper IUD. I am in a similar situation but I am opting for the Mirena IUD because I am sensitive to copper and the hormones in the Mirena are very localized and is only a small amount. PLus the Paraguard is good for up to 10 years, the Mirena only 5 and IF we do have another it's going to be more like 4.