Anyone else??

Not really ttc but not preventing. Not sure when I ovulated due to being on vacation and not really paying attention. Did have sex about a week go which according to glow(not the most reliable I know) was 3 days after O...I am 5 days out for my period according to glow and have yet to have tender breasts or bloating like normal. Diet has been changed for a about a month now, but no other major changes. I am however experiencing mild headaches(not normal) and nausea(also very rare)! Don’t feel sick otherwise. Anyone’s else felt this way and af show up, or get a positive test later?? Not looking for smart comments just getting an idea of possibilities