20 days late...

So I am 20 days late on my period but I took a pregnancy test when I was a week late and it was negative and then I took another when I was 10 days late, still negative. I haven’t been abnormally stressed or anything (that I know of lol). I’m worried because I had quite a bit of alcohol after I took the last pregnancy test... what should I do? I’m planning on taking another test tomorrow. I have not had any symptoms whatsoever so I’m very confused. I’m not on birth control and my husband and I have been actively trying to conceive but when I got the negative test I went out with friends and had a lot to drink (unrelated to the negative result).