Alcohol before I knew I was 7 weeks pregnant

I was drinking alcohol from 4-7 weeks pregnant. I had no idea I was pregnant. At most, it was 3 drinks a night a couple times a week. I cannot get in to a doctor until next week and I am totally panicked that I affected the baby. My husband and I want this baby more than anything but I’m terrified of FAS or other developmental issues. Any advice?