"i have used ortho evra for 4+ years while being in a relationship. i have had regular periods each month, all beginning on the same day each month while on the patch. my periods only lasted 3-4 days. i love the patch and have never had a pregnancy scare while on it. the only downside if any was when putting the patch back on after having it off for a week. that sometimes caused a sense of nausea, but i would highly recommend it."