Drinking during the week after ovulation

Hi ladies,
I am ttc but with the 4th of July and now vacation I had a few drinks here and there. Since the 4th I have horrible lower back pain and today I started having weird sensation in my lower abdomen. I am happy but I'm also afraid I might be pregnant and drinking... I'll stop today intaking any alcoholic drinks but have you found out pregnancy but drank while trying to conceive? I'm afraid I might have caused damage :((. It's too early to test for me; I might be able to test only next Thursday or Friday. My AF is due on July 15.