So I have been taking my progesterone only pill for about 7 months and never had consistent periods but they sometimes have some structure to them. I normally bleed twice a month but I recently bled for 23 days (did go to doctors) and finished bleeding on the 27th march and haven’t bled since. I took a pregnancy test yesterday (negative) but just am not sure why i’m not bleeding. Like I say my periods usually come around every 11 days and last for around 7 days. Is this normal? Should I be concerned?