My first time actually tracking with opk's so idk anything about it. I'm on meds that I can't be getting pregnant so I need to use protection like condoms. I haven't had sex in a few days and this is my ovulation test from tonight. No rude comments plz as I'm new to <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> and I hate avoiding pregnancy after ttc for a year so be considerate and I'm sorry if this offends anyone as I'm new to tracking with ovulation tests. Also I know about ovulation but how long do you ovulate? I've read it's 12 to 48 hrs but how do you know? And do I need to use condoms for the next 3 days or more? I might have sex tmrw night but not sure. My bf and me have both been busy working to have sex the last few days. Sorry I sound stupid but this part I'm not real knowledgeable about bc I was trying to get pregnant for a year and now I have to wait and be careful bc I'm on meds ugh