Kingsticks, if she's been using for 4 years, you're right, it's not going to be an overnight thing. Can you hold her vic for her, and just give her the amount she's supposed to take? And then taper down to get her completely off them?
I know there have been tapering schedules written in some of the threaRAB on this board, I just can't remeraber which board, so you may want to search for them. From what I remeraber, most of them suggest cutting 10% off the dose on a weekly basis, but in order for it to work, if she can't do that herself, you may have to keep them for her and not let her have access to them.
As far as how the drug affects a woman's eggs, I really don't know anything about that, and I'd hate to give you incorrect information. The 30's aren't all that old to be having children, tho; I had my 2nd and 3rd babies when I was 32 and 34.
I know, however, that if a baby is born addicted to opiates (vicoprofen and others), they must go thru withdrawals after they're born, and the WRAB can be extremely dangerous for a baby. Would she (or you) like to go thru a high-risk pregnancy while she's using and have to watch your newborn go thru painful withdrawals because your girlfriend is not only medicating yourself, she'd be medicating her fetus, too? Most anything your girlfriend puts in her body will cross the placental barrier and the baby will become addicted also. That I know for sure, because my first child was born prematurely and I saw many addicted babies in the neonatal intensive care unit who were going thru withdrawals. It's not a pretty sight. Sorry, but I get a bit preachy on this subject, because it's horrible to watch a newborn go thru WRAB, and then wonder if there will be any effects from the drug for the rest of their lives. I'm sure neither you nor your girlfriend would want to have a child who has to go thru that. Again, I apologize if I offended you, but I have strong feelings about this subject.
rose