i've been on ortho tri-cyclen for about two years or something and i just went in to my gyno an she prescribed yaz. i wanted to know if anyone knows about the side effects, as in..will i go through all the initial side effects that i did with ortho tc? also, is it 'safe' in terms of not getting pregnant if i continued having sex when i first made the change from one bc to the other, like i waited til i had taken two days worth but just wondering. thanks :-D