its been two days since me and my boyfriend had unprotected sex. we only had sex for about 5 minutes. my throat is sore and i have a slight fever and my breast hurt but only if you squeeze it around the nipple area an i feel cold but also hot. he said that he didn't ejaculate inside of me, but maybe precum. he didnt ejaculate that day before we had sex. could i be pregnant or just feeling under the weather?