Keto and late period

Hello ladies! I was on keto for about 3ish weeks. I started it right after I was off my period on 4/15 and I started my period on 4/10. I stopped 3 weeks in because I was feeling very dizzy and just couldn’t do it anymore. My cycles are normally about 24-25 days. This month I did not track ovulation for the hopes that if I didn’t stress about it and that would help us get pregnant. This is the 3rd cycle of ttc. So I am unsure when I ovulated. However here we are 4 days late for a period. I tested yesterday with frer and it was negative. My cervix is high and closed with watery but dryish CM if that makes any sense. It almost looks like wet broken up tissue. My question is if any of you ladies have been in this same boat and what was your outcome?