a little anxious

so, i had sex for the first time in YEARS 2 weeks ago. so i had forgotten to check if i was ovulating or not!!! apparently i was!!! :( we didnt use protection (stupid, ik) but he did pull out, though i know sometimes that doesn’t really help if the pre cum has sperm count in it.

anyway, ive been sort of dizzy and exhausted, it could be because of this cold i had. but my anxiety is trying to tell me that im pregnant! and every time id think that i’d feel bloated and thinking my breasts were tenderer??? but it only seems that way when i’m anxious.

so i was wondering do i have to wait until the date my period is supposed to arrive to check or can i check earlier to calm my worries? what pregnancy test brands are reliable?