When u are in birth control pills, that means u are ovulating right? since ur getting a period?

No: The birth control pills override the ovarian function and take control of the hormone levels in your body. The hormones in "the pill" do what your ovaries used to do: they tell the lining of the uterus to thicken, then shed each month (your period is the shed). The levels of hormones in the pill are high enough that they override the ovaries so no ovulation occurs. Happy uterus, happy ovaries!