DH and I have always used condoms but, let's face it, it's nicer without. We're both in our early 50s. I've never known anyone who has conceived naturally in their 50s. Can we just stop using contraception? Obviously there is a small risk of pregnancy, but it must be minuscule. (We've been together nearly 30 years and have not had any other partners during that time, so no risk of STDs.)