Can I stop using novelon with 1strip.

I'm using novelon for irregular periods Can I stop using this after 1strip(after 21days) Orelse can I use the same tablet again after my periods My question is for how many months did I need to use only 1strip enough r else I need to continue the 2nd strip after my periods.In October actually my expected period on 27 but I got it on 1st November.In november I got my periods 3days before than the expected date i.e November 27.initially there is a spottings later the normal flow to less flow it's followed by 10-12days my last day of periods was December 10th.In January I got my periods on 10th same day morning I consulted doctor she given this novelon tablet for 3months on that day only I got periods ie: January 10th so I didn't taken that tablet on that day but I started taking it on my 4th day Can I consider this as irregular periods or normal thing.Actually in October I got typhoid fewer bcoz of that my periods are like this are anything else.Can I stop using this tab after 1strip??