I am on my first pill pack of Minastrin 24 Fe. I started them on the Sunday after my last period (which was on a Tuesday). I've taken every pill at 7:30 in the morning, a few a little later but no later than 9 am. I've had unprotected sex a few times, but not during the first week. Today I took the last brown Fe pill and still no period. I've had really light light pink and brown clumpy discharge on all 4 days of the brown pills, but that is all. Is this normal or should I be worried?