Possibilities of pregnancy??

This question might sound pretty redundant. I guess maybe I'm looking for some kind of urance regarding it. I was engaged in mutual masturbation with my boyfriend yesterday, and he d. Around 10 minutes later I went to take a shower. But before touching myself I soaked my hands in diluted dettol for a while, and doused myself with diluted dettol as well before taking a proper shower and cleaning myself. There was a bit of spotting yesterday and a little today as well, and i was wondering what are the chances of that being a case of impregnation bleeding (though not very possible) or is it due to my ovarian cyst. My period just ended two days ago.