No period

So I was due for my period on 11/1 and it still hasn’t come. I took a pregnancy test on 10/31 and 11/2 and both were negative. I just came off of birth control the end of September so I don’t know if missing my period has to do with that. I was very regimented before birth control (was on for ~4 years) so I didn’t anticipate any issues coming off of it. My husband and I had sex on 10/15 and 10/17 and I thought I ovulated on 10/18. I’m holding onto any glimmer of hope that I may be pregnant. Can anyone share some input on this?