Pregnancy questions

I'm on day 20 of my cycle. We had sex last Thursday on my day 12 and nothing for lack of a better word came out after like it always has before. I have had a white discharge all week, a metallic taste on my breath, today I started peeing quite a bit after not drinking much, my nose was actually really stopped up today which idk if that means anything. I know it's only been a little over a week since we had sex that day but just wondering what this could mean.