Yes. No. Maybe.
Sorry if that's maddening but there's nothing definitive.
In the meantime, try to relax. I know it's not easy, but the annoying thing about female bodies is that stress delays our periods. Stress about being pregnant, and guess what? Yeah, it's annoying.
You can buy an over the counter pregnancy test but follow its instructions to the letter.
As in, almost always those things want you to wait until two weeks after your period is expected. Hence it does not do you any good to purchase one until and unless you need it.
And use this as a learning experience, no matter what happens. Get reliable and safe birth control, and learn how to use it, whether it's a pill, a barrier method, or an injection where you need to make sure you keep regular appointments.
Stop gambling with this.