Help I'm so confused

Asiyah

Hey everyone, hope you guys are well, so my period finished on the 20th of October and I'm in my ovulation window currently. I wasn't feeling to right so I decided to take a test and without even expecting anything I got a super instant, clear positive. I'm unsure as to when i could have conceived in order to get this positive.is it even possible to get a pregnancy positive during ovulation if my period finished not to long ago? The time frame doesn't add up to me Any help?