My period has been late for 60 days and i take prenatal vitimans... could they be interfering with my cycle? i also have hypothyroidism

Pregnancy: Hi, the prenatal vitamins are not interfering with your cycle. There could be many reasons for missing your cycle. You should complete a pregnancy test and visit your primary care doctor to discuss your symptoms and have your thyroid hormone levels checked to exclude this as a possible reason. That would be a good start. Good luck!