So I did some no-no's this weekend

My chart is still alittle funky because of the BC pill hormones leaving my body. But me and DH DTD 2 days while I had eggwhite CF with no barrier. We just used the pull out method. I have been dreaming of an "oopsie" but now I've scared myself. I think I O'd yesterday or the day before. Doesn't my temp. have to be high for a certain amount of days before I can consider myself pregnant? Also this is only my second month charting and I'm not really sure I should expect AF anyways. I do not want to go crazy POAS later.