Help me think logically!!!

I haven't done anything with a guy in almost 3 years so I am not on birth control. My last period ended on 9/24 and I decided on a whim to have a random hookups with a guy in met on tinder. He and I had been talking for a while and we still text occasionally.

Protection was in place, condoms were used, nothing broke. I even over cautiously too a plan b pill the same day (9/27).

Now last week I noticed I'm extra hungry and today my breasts are sore. My next period isn't set to hit for another week or so.

Should I be concerned about pregnancy? I haven't had this as a thought for years now and my anxiety is getting the best of me. I've never done anything this spontaneous and now I'm regretting it 😵‍💫

Of course my doctor was able to get me back on birth control but I didn't get it in the mail until today and I haven't started it yet since I was waiting for my next period.

I'm a single mom with 2 elementary kids. Someone be real with me... am I being crazy? I know it's too soon to test and I'm freaking out. 😫