Hallow, I have read your query and have understood your confusion.
Charlize tablet pack contains 28 tablets. First 21 days tablets are the main hormone containing tablets. Last seven tablets are as you know are iron tablets. The main purpose of iron tablets is not to break the habit of taking daily tablets. Also they help you to regain the blood lost during menses.
After finishing the hormone 21 tablets, any day during the iron tablets the menses start. By the time you finish iron tablets, your menses are over and the new pack starts. You do not have to worry for starting the menses while on iron portion of the tablets.
Now you have got two options:
1. Continue taking the iron tablets of this pack till the tablets are over. Mostly by that time, your menses also would be over. Then start the new pack from tablet 1.
2. On second day of your menses, discard the remaining tablets from the current pack and start the new pack with tablet 1.
I would prefer you to opt for second option.
No need to be under
stress. You are well protected.
I am sure, I have resolved your confusion. If so please respond.