How soon can I test?

So I had unprotected intercourse on the 23 on January. This was an ovulation day for me. I stopped taking my birth control a month back because I stopped having sex. However I’ve been feeling very sick Nd my breasts are extremely sore. So I got the clear blue early pregnancy test. I’m supposed to get my period On the 7th of February however would I be able to take one today the 5th of February?