Pregnant ?🤷🏼‍♀️ help

Sandy

I had unprotected sex “pull out method” with my s/o multiple times during my expected ovulation “fertile” days, I am now 2 days late on my period. I have very milky white discharge, that I have never had, and I never get discharge when I’m supposed to be on my period. I took a pregnancy test today, but it was after drinking coffee and about 3 cups of water. It was negative. So should I be positive I’m not pregnant? Or should/when I take a pregnancy test? I’m NEVER late. Very regular.