Third time's a charm?

Another BFN over the weekend, so today it's back to the doctor for round 3 of IUI. I think I'm going to talk to him about a laparoscopy if this time doesn't work, just so we know what we're dealing with in there. Not thrilled about having unnecessary surgery, but it might save me money in the long run if the left side is blocked as I fear. I did check the sperm bank and thankfully (as of now) there are plenty of samples left from the donor I used last time, and according to my doctor his swimmers were great. So why fix it if it ain't broke. (Hopefully I'm not broke either...)