My partner and I are trying to induce lactation, she's on the nuvaring which can apparently help, can it?

Have you contacted La Leche League? I have had a few of my adopting moms follow their suggestions/program with success. The pill usually is a combination of estrogen and progesterone which will not work very well as the two hormones are trying to do opposite functions. Usually you will take high levels of estrogen, stop abruptly and switch to progesterone and a medication called Reglan. Of course you need to begin pumping at this stage and possibly use a tube system until lactation is initiated. It's a lot of hard work but if you are committed it's worth a try. As well as finding out what to do to help lactation, also find out what can inhibit milk production so that you won't be defeating yourself.Good luck!