DarioKehl - The masturbation component didn't even occur to me! Is there a loophole if the semen is intended to create a life, rather than to be spilled out onto the ground?
problemaddict 2 - You have an excellent point there. Would it be permissible if only one egg was fertilized? I know that the intention would be to harvest as many eggs as possible.
A (non-JW) friend of mine recently became pregnant with IVF, using a donor. She had two eggs harvested (that was the most they could collect from her) - both were fertilized, one implanted in her and the other frozen. I remember thinking that the one "in the bank" may never be used. That's when it occurred to me that fundamentalists and the pro-life movement would surely disapprove.
What if a JW gave very specific direction that only one egg be harvested, therefore avoiding multiple fertilization?
And, could a single woman store her eggs for potential fertilization later on with a husband's sperm?