Definitely see a doc before stopping ANY meds....serious side effects can occur from stopping cold turkey.....don't stress over the alcohol....you are so very early pregnant and alot of women don't even know they are pregnant this early.....
You should be ok but talk to your doc asap to find if meds are ok to take during pregnancy and if not have them prescribe something that is there are anti-depressants that you can take safely while pregnant
I am 36 weeks pregnant and, on my midwife's advice, I stayed on zoloft the entire pregnancy. Before you stop taking your meds, get to a Dr. Some of these anti-depressants have bad side effects if you stop taking them cold turkey. As for the alcohol, I really doubt you've done any harm. The baby is very well protected in the first few weeks before we know about them.
i would recommend you to see a doctor at first place . and stop taking any medication and also the beer etc.. Best of luck