Hi B.,
I have three sons, all of whom I have nursed. I took the brand name Micronor with my oldest and nursed for 13 1/2 months. I had NO side effects and no cycle until the month after I stopped nursing.
With my middle son, I took the brand name Micronor the entire 22 months he nursed plus stayed on it because the doctor said it didn't make sense to change if I was just going to go off them in another few months to try for baby #3. Again, no side effects and didn't get my cycle until the month after he stopped nursing.
Now with my third son, my insurance would only allow the generic of Micronor so I am taking Camila. I did seem to have some side effects for several months but looking back I don't really know if it was the Camila or just physical issues with me. I have no problems now though I do get a cycle and have since he was about 9 months old even though I exclusively breastfeed.
I would not trust anything else. Some doctors suggest regular BC when they get close to a year but I have read too many things about that that concern me. I will gladly stick with the Micronor.
Good luck,
L.