I have been with my boyfriend for 5 months. I have also been on Ortho Eva (the patch) for almost 2 years. I've never been really worried about pregnancy, but I take off my patch to change it on Sunday, but, and here's the problem, my boyfriend and I had sex on Monday. Usually when i get my period, it's really heavy the fist few days, then it calms down. I have been bleeding a little bit but i don't know if it's my period or not. Do I need to worry?

I don't think that being one day without patch would cause ovulation. At least it is like that with pills. If you skip one day but otherwise take it regulalry, you are highly unlikley to get pregnant. Plus, you are getting much more hormones with the patch than you would with the pills, so I doubt you are at any pregnancy danger.