Earliest you can get a positive on a pregnancy test?

I’m 18 and my boyfriend and I haven’t been very safe, when we sleep together we usually wear a condom but recently he’s been taking it off after he comes and puts it back in and he also did that during my fertile window. Then yesterday, he just straight up came in me. I’m about a week away from my period now but the last week I’ve had extremely sore boobs, and I’m way more emotional than normal along with just feeling exhausted all the time. Is it too early for me to be having symptoms for pregnancy? I want to take a test but I dont know if it’d be too early to tell.