Hello. I'm planning to come out to Copenhagen for donor insemination ealry next year; I have discussed this with you already on the telephone. To get an idea of my most fertile time in the month, I decided to start doing the ovulation test this month. I began testing on day 10 as suggested, but the test hasn't been positive until today, day 16.Should I be concerned by this or is this considered to be normal?Thanks, Elaine