Alcohol while TTC just after AF shows up?

AF till I next ovulate has been my regular drinkin window. Not a lot but may be a beer or a glass of wine 2-3 times in the window. Its to cope with the frustration everytime AF visits and also a hint of positive attitude that may be this is my last drinkin chance if i fall preggers this time, which means no more drinkin for the next 2 years. I hope this is normal and there are more people out there who think like me. :)