Question

Ka

So I was suppose to start Femara! But I had missed my period & so the doctors were waiting for her to show! I was praying it was Monday but it showed up late tonight!!! & they wont reopen til Monday! Am I still good to take it cycle day 3 or 4?! Or will I have to wait til next month? (I don’t have the medicine on me it had to be ordered the day my period started & it’s Friday now)