That sounds like at least as much hassle as thinking about the contraception! Given that this is causing you so much of an inconvenience, I would strongly urge you to at least do a little research into Natural Family Planning. With the Billings Method (www.boma-usa.org) there really is very little work involved (no temperature taking or anything) and it's extremely accurate, even for irregular cycles. My mother-in-law and I both do this exclusively with our husbands and conceived our children exactly when we wanted to, no sooner or later. Plus, there's lots of health benefits to not having all these interferring chemicals and appliances in our bodies!
Good luck, whatever you decide!