When to order?

I’m scheduled to ovulate next weekend, but I’m concerned about when to order the tank with sperm to arrive. I don’t want to order it too early and thaw out the specimen, and I don’t want to order too late and ovulate before it arrives. I ordered a two week tank last month to avoid this problem, but when we opened it (after a week) the tank was completely thawed. Luckily we are getting a new vial free this month, but I’m nervous. Any suggestions? When did you order?