Hello! I'm new to glow. Went off birth control Sept 12th. Got a period the 16th, I stopped pills mid cycle. According to glow I ovulated 10/2. Tested and got a positive surge on my opk. I'm getting married Sat. The 11th. Glow says my period is expected the 14th, then it moved to the 17th. Not sure why. My question is, alcohol? We want to enjoy our day, not worried about a period on Honeymoon but dont want to drink If I am pregnant. If I tested Saturday morning would I have an accurate result? I just don't know how soon is too soon. Any info would help. Thank you :)