The woman has not 'grown' anything, she has been tapped for shelter, nourishment, and oxygen by a completely separate entity.
A woman's fetus is her property and yes she does grow it. Perhaps you should posit your parasite assertion to a doctor: "Doctor, is a fetus a parasite or an appendage?" Despite the doctors reply obviously you may continue arguing your assertion that it's a parasite.
Let's just do that. I'll ping a couple of doctors that are Freepers. Stick around, jerk.
BTW, I didn't assert that the prenatal being is a parasite, I assereted that your asinine assertion of appendage was less accurate for your style argument than to assert that the prenatal is a parasitic arrangement. But that was a nice try at constructing a strawman.
Southerners claimed that black slaves were their property, too. That didn't make it true. If the unborn child is a human person, it is the "property" of no other human. If it's not a human person, asserting that it's someone's property is merely assuming what you're trying to prove, and that makes your argument a circular one.