"after being on tri-nessa for at least a decade with no problems, i was switched from tri-nessa to low ogestrel because i was experiencing very heavy bleeding during my periods. the low ogestrel did fix the heavy bleeding but at a cost. i&#039;ve been on l.o. for 6 months and have been experiencing depression, mood swings, acne on my chin and pimples on my scalp.at first i attributed these things to the beginning of menopause, but after really thinking about it, it just seemed too coincidental that these things began when i began taking a different pill. this morning i googled &quot;side effects of low ogestrel&quot; and am finding pages of stories just like mine.  i already have a call into my dr. and will switch pills."