I guess you forgot to stop taking PM 7 days before your period. In fact you can stop 7 days before and start taking them again few days after your period has started or wait till it's over and then start again.
I take mine for about 21 days per month and did not have any problems with my period but 15 days sounds too short? I had a look at my pack and it says take it for 15 days but on their French website it says you can take it for 21 or every day for the full month if it does not interfere with your cycle.
Here is a quick Google translation of the French website.
"Extra MiroHealth Anne Selene (order No: H1010002-060) Take one or two capsules daily for breakfast and dinner or before bedtime. For women, take the first capsule last day of menstruation and for 21 days. Stop and then repeat the cycle for 1 year before starting periods of consolidation may be a pill a day. You can also take MiroHealth capsules daily if you want to, but it might give you irregular periods"
Hope this helps.
I take mine for about 21 days per month and did not have any problems with my period but 15 days sounds too short? I had a look at my pack and it says take it for 15 days but on their French website it says you can take it for 21 or every day for the full month if it does not interfere with your cycle.
Here is a quick Google translation of the French website.
"Extra MiroHealth Anne Selene (order No: H1010002-060) Take one or two capsules daily for breakfast and dinner or before bedtime. For women, take the first capsule last day of menstruation and for 21 days. Stop and then repeat the cycle for 1 year before starting periods of consolidation may be a pill a day. You can also take MiroHealth capsules daily if you want to, but it might give you irregular periods"
Hope this helps.