How soon can I take a pregnancy test?

I ovulated the 14th according to opk.. BD on 13th and 14th multiple times. So, what is the soonest I can take a pregnancy test and expect a positive result?

I have a feeling I am pregnant because the one symptom I ALWAYS have when pregnant is exhaustion. Like I could sleep all day and all night and it wouldnt be enough sleep... exhaustion. I've been bloated the last few days and increase in urination but no change in fluid intake. So I am excited to see if I'm pregnant or not this cycle.