I've been on the NR for about 6 months now.
Now that I'm reading all the comments, I see that my migraines, lack of sex drive (NR kills your sex drive, therefore it is doing a good job of preventing pregnancy :-), bloated feeling, sharp abdominal pain - like someone stabbed me from inside, pain during sex (so we can only do certain positions) ... can all be attributed to NR. I also experienced that my natural D cup breast feel like DD because they are constantly swollen. I'm off the NR for about a month, strangely my migraines disappeared entirely and I do not have to take Excedrin migraine every other day. I'm going to my doc to check out my ovaries since I think that the sharp pain is related to perhaps some cyst.
I'm not sure what will I use in the future as BC... I'll probably try this new minipill called Cerazette, it is a pill without oestrogen.