am i pregnant? – if so, has my drug use affected the development so far?

i admit, i had unprotected sex, a lot. and for the past couple weeks ive been having symptoms like,
my boobs are getting pretty big but theyre not sore,
darkening around areola, my acne is clearing up ALOT, i look tanner, and i have alot more blood circulation in my arms and legs.. ?
and i have cramps sometimes like a sharp pain in my stomache almost everyonce in a while. I started craving foods, and for the past couple days ive been able to smell literally everything! and mood swings and blabla..

so basically i was pretty sure that i was maybe like 2 or 3weeks pregnant, do symptoms start that early?

But something weird happened today, I got my period. and It was not lighter Than normal, it was actually heavier. And (im sorry this is disgusting) but honestly smelt fucken weird, like way weird and strong.

But during November and December i didn’t have a period and on January 10th I had a one day period That was very heavy and it was in chunks.. very weird. My roommate said to me that it seemed like I have a very early miscarriage.

I’m Also a Frequent Crystal Meth user…
so are some of my symptoms coming from withdrawls or what?
Well the Period that Im on now is heavier than normal but not as heavy as The one in January. And That happened while i was in rehab.
The period that im on now is like I guess a normal period Because my periods are usually really Light because I don’t eat that much but maybe This one is heavier because I have been eating more Often.
oh also, its 8 o clock at night right now and I havent spotted since noon i’d say and I got my period Around 4 o clock in the morning soooo yeah idk what else to relly tell ya