Thanks everyone.
We think that it happened because on Tuesday for cycle monitoring we had to see a different doctor at the clinic (our doctor is out on Tuesdays, so this other doctor always takes her patients). He made the call based on the blood work and u/s for us to come in on Weds for cycle monitoring and insemination.
By the time our doctor saw Manada's charts on Wednesday, we had already told the andrology lab to thaw our sample (which is the first thing we're supposed to do on insemination day). So, when our doctor met with us for the insemination she reviewed the chart from Tuesday as well as from Wednesday morning. At that point she told us that she wanted us to come in this morning (Thursday) to do cycle monitoring "confirm" that Manada had ovulated.
We weren't able to stay for long enough to meet with our doctor after the ultrasound and bloodwork today so the nurse called us this afternoon to give us the results that Manada had not yet ovulated but that our doctor thought she would very soon and that the sperm would still be alive.
Most of what we've read has led us to believe that that frozen, washed sperm will not still be alive so far outside of the 12-24 hour window . . .
We have not had a chance yet to talk to our doctor about this or about what, if any, responsibility the clinic will take.
Since we're in Canada, the cycle monitoring costs are covered (thank goodness!) but the sperm plus insemination fee totals $950, plus all the time, energy, hoping, planning, etc. that went into getting ready for that insemination.