My son is 16 months, I have continued to breastfeed him but very little. Once I started weaning him, and cut his feedings down to 1-3 breastfeedings a day, I got my menstrual cycle back. At the same time when my period returned I switched from Ortho Micronor to Estrostep Fe. When I first started it 3 months ago I had 2 periods in a month. Since September my period has disappeared and there is no sign of it. I got cramps but nothing. In between the swtiching of pills I did not stop birth control or anything of the sort. Of course I took a pregnancy test and it was negative. Since I am still freaking out I took another last week and it was negative. I am still feeding my son maybe a little more often now. I still do not feel at ease. I tried for many days to reach my GYN, but she hasn't been in. I will be able to reach her tomorrow but has anyone heard of getting a period and it stopping due to increased breastfeeding. I know it could be the new pill screwing up my cycle. I just wish I could be more at ease about not being pregnant, but unfortunately the negative tests are not making me feel any better.