Let's list them, and I shall list the situations where it doesn't.
Being killed is a far more life-altering situation since, you know, you're dead and all.
Indeed, large decisions should be conscious. But since we live in a society where innocent lives are generally viewed as sacred and something to be protected, it is not anyone's decision to take away anothers life.
A consequence of sex is a baby. If you're prepared to have sex then you know the risks. Condoms are not, and have never pretended to be 100% infalliable. You know this. Everyone knows this. A broken condom is not an excuse.