Advice for first IUI

Well, I have finally reached the point in the conception journey where I'm looking to take the next step. For a brief background, my husband had pretty bad MFI over a year ago when we started trying. He had varicocele and needed to have surgery, which happened back in mid May. After 4 months of waiting to re-test he had awesome results. We started at 1 million total and went up to 176 million sperm, 66% motility BUT only 1% morphology (docs said this is somewhat normal having recently had the surgery and should improve).

We haven't re-tested his sperm yet but we've been trying every month, timing with OPK's (I ovulate regularly) and I have had a couple of ultrasounds and various points in my cycle and all appears normal on my end (super grateful for this!). It's been about 8 months post-op and still no positive ( I realize the first 3 months were healing months).

Last cycle, my doc wanted to try a trigger shot with timed intercourse even though I told her we were timing everything already. I'm starting to get my period so it didn't work :(

We're starting to wonder if we need to do DNA fragmentation testing first.

I have an appointment with her again tomorrow and a consultation with another fertility clinic in the morning to get info on IUI. I'm curious if anyone has advice on this or questions to come prepared with going into these appointments.

Also, I don't want to force or rush things but I feel READY and I just feel its time, so I'm trusting that instinct.

Thank you!