Very frustrated:/ sorry long needed to vent

I know I'm not the specialist so last month I did my best to trust the fertility clinics recommendations for my first IUI.

I had my CD 3 scan and they prescribed femara and a trigger shot. I was to take the meds CD 3-7. She said to come back on CD 12 for midcycle scan. I expressed i have a shorter cycle and usually ovulate earlier around CD 12 and maybe I should come earlier. She said they do scans on CD 12 and and if I came earlier on CD 11 which was a fri and wasn't ready yet that I wouldn't be able to get iui because of holiday. So I asked her what her recommendation was and she said CD 12 since I have never taken the meds CD 3-7 and wasn't entirely sure how my body would respond I agreed.

On CD 11 I was having some O pains I thought but hoping I was wrong and went for my scan on CD 12 and had one huge follicle almost 26mm. I thought that was weird since the time before when I took femara I had 4 follicles 2 on each side. She seemed rushed during my appt and just said to trigger that evening and schedule iui for CD 14. I asked her what happens if I ovulate earlier that day and she just said you will anyways because of trigger shot. So again I was trying to trust them ..a few hours later I'm having O pains again. I did trigger sat night as I was told do and went for iui on CD 14 morning. I asked the lady while she was doing my iui what size follicle means ur about to ovulate she said between 25-26 and so I told her that was what my size was on CD 12 and I was worried I ovulated more than one follicle on CD 11 and CD 12 and she said if that was the case it would be too late for the iui to work.

I left my iui appt with my husband mad instead of happy because I was fairly certain everything I just did and spent was a big waste.

So of course as expected I started my period Fri evening and have to call the clinic in the morning. My period date confirms for me when I ovulated. I need to make my appointment in the morning for my scan and to get meds so I pray this month goes more smoothly and I hit the right days for my iui.

Sorry so long I needed to rant I'm just very upset at how everything went for my first IUI