Am I second guessing myself? Please help!

I missed my period I am currently running a week late. I am on BC pills I take then accurately except in the middle of my pack I threw on up, not thinking to take another. I took to pregnancy tests today(day 7) they were both negative. Would this be accurate or could I still be pregnant. I am experiencing sticky discharge and some white clumps currently. Prior to my period I was experiencing: white clumps of discharge, discomfort during sex, some dryness causing spots of blood after sex. Please help me!