Hi I ve been on Cerazette since September and in a stable relationship and had intercouse quite alot, ive never had a period on this pill, for the past week or so I have become very drained, tired, sickly feeling and had a slight browney discharge 2 nights ago, took a home test today and there was a faint line to show positive, then repeated a test few hours later and came up negative, could I be pregnant or has the pill give me a false positive result ?? Please help