I have been on the minipill (Ortho Micronor) since my daughter was 6 weeks old which was April '04. She breastfed for one year. I had my first period in Jan '05 when she started eating solids. I didn't have another one until late March after she had weaned and then another period one week after that. I had my next period at the end of May and then another one two weeks after that. It has lasted for 8 days now. Has anyone else had problems like this?