Yeast infection? Help!

Raluca
Hi everyone!
Since I started to take the pill 5 days per month I have got these white discharges similar to lots of images showing yeast infection discharges.
It is only temporary along with itchiness and after about a week goes away and coming back next month.
Shall I visit a doctor regarding this or it will go away without any treatment? 
I must say I am quite concerned as I never had these discharges before taking the pill (started 5 months ago).
I could really use a piece of advice!
Thank you!