Jala maybe it works for you but be careful is my advice. I liked them too...then I wound up pregnant. I am now almost done with my first trimester and I know that the natural sponge with contragel/femprotect failed me when I used it during my fertile time. When the time comes and hubby and I need contraception again I will NOT be using this method. It hasn't been proven scientifically and it is now obvious to me if someone truly wants to be protected this is not a reliable method. Luckily for hubby and me we were okay with becoming pregnant unexpectedly.