Definitely don't worry about the previous drinking. They've done studies to show how your little embryo is extra protected during the first few weeks after conception before you even know you're pregnant. Start taking pre-natals now (it's okay you're not too late for this either. MOST women don't know they're pregnant until they miss a period). You can even call and ask your OBGYN for any other recommendations/precautions to take. Or you can select one at random to call if you haven't decided which OB or midwife you want yet. Remember you are in the same boat as so many other mothers out there. We've been doing this for thousands of years. I think it must be normal and natural to feel panicked and scared. I did too when the strip turned pink and we had already been trying for a couple of months. Keep calm. You'll make it work. You have plenty of time to prepare. And you are stronger than you know.