Abortion... Whose Choice is it?

Instead of talking about a woman or the government's right to choose, I want to talk about a man's right to choose.

That sounds silly, but I was talking to a family friend who was relaying the story of his friend (that sounds really gossipy) whose child had just been aborted by his ex.  The man's friend was really distraught and wondered why he had no choice as to his child's life.

I thought about this for a while, then I said, "who does more work, the man who donates the sperm to the woman, or the woman who does everything else."  He responded that he wasn't sure if the sperm was being donated to the woman or the child.

That was a good point, then I thought of a metaphor.  You have a house to be cleaned, both the man who unlocks the door to the house and the woman who actually cleans the house are necessary for the house to be cleaned.  The difference is that after the man inserts his key, so to speak, he leaves the house to be cleaned by the woman.  All the work will be done by the woman and the woman will get all the credit for cleaning (and rightfully so).  If the woman decided to stop cleaning, it would be nobodies choice but her own, right?

What do you think of my allegory or my belief that a woman should have more say over an abortion than a man?