Timing is Everything

I'm trying not to freak out, but I may have completely messed up my timing this month.  I had ordered the sperm to arrive on CD11.  Over the past six months of fertility monitoring, there was one month where I got a +OPK on CD11, but I have mostly been getting them later into the cycle.  Then, this month, AF came one day earlier than usual.  So, that made the tank delivery day CD12 instead of CD11.  I probably should have called to change it, but I thought there would be a fee (although today I realized that is just if you change your order on the shipment day) and I don't know, I thought it would be ok.  If anything, I was more worried about getting a +OPK too late and the tank thawing out or being overdue.  Anyway, here we are CD11, sperm is due to get here tomorrow and I had a +OPK this morning.  The recommendation is to do the insemination within 18 hours of a +OPK, which would be tonight.  I don't even know what time my tank will be delivered tomorrow.  Needless to say, I am totally kicking myself for this.  I need to do some thinking about either a. tweaking the timing of the delivery for next month or b. moving on to IUI at the hospital where this wouldn't be an issue.  Or, maybe I should spend today looking for an eligible gentleman and experiment with heterosexuality.