I know this sounds irresponsible but....?

I maybe pregnant but i have a party at my place this saturday (19th) and i'm thinking about taking a test the next morning, will having drank have had a effect on the results? I read that in the first 12weeks it survives on your endometrium layer so it has no effect on the baby.
Update: My period isnt due till the 26th so 19th is still really early
Update 2: i dont understand what the big deal about having a drink is? I'm not gonna get smashed. One drink, since most people dont know they are pregnant till 4 weeks they probably do drink
Update 3: i dont understand what the big deal about having a drink is? I'm not gonna get smashed. One drink, since most people dont know they are pregnant till 4 weeks they probably do drink
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