Did anyone not know they were pregnant and continued to drink on a normal basis?

My hubby and I had been trying for a while and I finally gave up because my period was getting irregular and I kept getting my hopes up to see a BFN then when we trying and started going out and having a little too much fun Ha! I got a BFP I could be anywhere from 4-9 weeks because I haven’t had a period since December. I tested in January, but was a BFN for a week straight. Didn’t get a BFP until 6 days ago. Did anyone else not know and drink for a while?