Worried about FAS?

In my line of work, I was drinking 2-5 gles of red wine most nights up until only last month. Reason for this, I did not even know i was pregnant as still had my periods. I am worried as i only found out that I was 5 months pregnant and am greatly worried about the health of my unborn little girl. My husband is brilliant and says to stay calm as we did not know. I have obviously quit any form of wine and and petrified of anything going wrong. Can anyone share this experience at all ???