Once I've had my babies, I will donate my eggs. If someone is able to receive my eggs they must want to be a mummy very much. I would not mind meeting that child when they turn 18 if they want that.

Oddly enough, I'd rather be an unknown donor than a known one - I wouldn't be able to keep my opinions to myself if I saw "my" baby every day, and that isn't helpful as the baby won't be my baby and no-one likes unsolicited advice.