@Nima thank you! I am feeling a bit better about that! I also am just so worried about the timing because frozen sperm only has a lifetime of 12-24 hrs vs 3-5 days like fresh sperm, so I really have to hit the day! Another board I'm on of just Single Mothers by Choice has really given me the advice to do IUI in the clinic setting, but I would have just gone in 24 hours after positive OPK if it's a natural IUI cycle so if my first positive is off, then I would have missed it then, too, and it would have cost me more! So, I don't really see the benefit of that yet.