Thanks for the query to H.C.M. Forum.
) both are most potent drugs for anaerobic infection ( bacterial ) as well as for other conditions.
But both these drugs don't interfere with menses.
So delay of menses may be due to ,
1 Long travelling ( naturally travelers tension).
2 may be some disorder in uterus
( ideopathic reason).
In my opinion wait for another 10-15 days for period.
If ,no menses then consult GYNAECOLOGIST and get his opinion .