Not sure what to think

I took a FRER yesterday morning at one day late and it was negative. Ever since I started tracking my cycles a year ago I've never been late, I always start exactly 14 days after ovulation. Today is officially day two of being late and my temps are still elevated so I know I'm not starting today either :/
I got a positive OPK on the 16th and I had sex on the 7th and the 25th, so I was not expecting pregnancy at all, but now I'm worried I may have ovulated twice or something.. Unlikely, but possible :/ after my first positive OPK I stopped testing so I have no idea if I did surge again
I'm just asking what you ladies think?