Technically speaking, everything but essure allows for a chance/fraction. technically speaking.

However, if you calculate the chance would be negligible.

Do the math and:

1) webMD: How Effective Are Male Condoms at Birth Control?

Condoms are about 85% effective for birth control. With careful use, they are even more effective.

So 0.15 probability of failure with not quite careful use.

2) Mirena - more than 99% effective per Planned Parenthood. So let us say 0.01 probability of failure.

3) the failure of condoms and the failure of IUD are independent events

4) the probability of a co-occurence is thus (because of (3) above) a product of the probabilities of individual failures

5) 0.15*0.01=0.0015. That is an underestimate because I overestimated the failure rate of both methods.

If this is not equal to 100% effectiveness for you, in practical terms, you should never drive a car.