I took progesterone for the 10 days as prescribed and the dr said I would have a flow within 48 hours tops... well it's been 5 days now and still no signs of AF.... however I am having similar signs to pregnancy. Extremely tender breasts, frequent urination, nauseous all day, extreme fatigue. I don't know if it is the meds that have me all messed up or what but 3 tests and they all say No, it would technically be very early if I was Pregnant but why the heck has AF not started.