Af due 11/17

Okay ladies, so my af was due 11/17 and STILL hasn't showed her face. Today would be the last day of my period. So I faced my fears and took a test. Me and my SO saw a faint line so I posted it on here and a couple of y'all commented and said it was a dye run to retest, so that's what I did but only to get a negative test back. Sooo. Then I told my mom. Which I didn't want to because we were gonna surprise her with it at Christmas but I needed answers, but she couldn't give me any. Her response was "what do the directions say? I haven't taken a pregnancy test in over 22 years dammit" 😂😂 so if y'all can help that would be amazing!