how much do drugs/alcohol affect your period?

The other weekend (the day before my expected period) I did shrooms with my friends, had some wine and  smoked weed/tobacco like all night, which is way more drugs/alcohol at once for that long than I've ever done in my life. I was safe and protected, had a great time with no stress. My period is so far 7 days late, and I took a pregnancy test just in case which was negative. Do you think this could be why my period is late? Like is my body trying to regulate itself after that? 
Any help appreciated, thanks