Birth control pills more info?

hay awile back i wanted to go on birth control because i was in a relationship and still am and also my periods so then i was put on ovranette after three months of tat i wasnt feeling myself and decided to go off it just for a while till i felt myself again. i was disappointed that ovrantte did work for me as when i was researching it was known as one of the best then recently i decided to try out a different pill its called estelle...but im geting worryed tat i cant seem to find any info on it...does anyone no anything bout it?please let me no