I need suggestions on to do after trying to get pregnant for a year. Husband and I is normal. Doctor prescribed folic acid and have been taking it for 2 months now. I consulted a doc and I had pelvic scan and it says negative for intraepithelial lesion or malignancy. I do not know if I need to a test or scan. Is it normal to have a change of period from 26 days to 23 days?