Letrozole

Kathleen

Started letrozole 2.5mg this month from cycle day 2 till cycle day 6 , had an ultrasound today to check on the follicles on my ovaries they mentioned I have one on my right ovary measuring 14mm but they want me back again on Friday morning because they like to see the follicle at least 17mm , but I had a positive ovulation test 3 days ago.. can anyone help explain all this to me please am so confused because they never really explained anything today