IUI with a "very posterior" cervix

Dana • We have one amazing 5yo IVF baby. 41 and TTC #2. After 4 retrievals with 6 failed transfers, we're doing a few Hail Mary IUIs in Feb/March to use up our donor sperm, then closing the book on TTC 🤞
I've always had extremely painful and difficult smear tests, which I've been told is due to my cervix being very posterior i.e. facing backwards and hard to access. Naughty cervix >:(
Apparently my uterus is also quite anteverted. Fun!
I've heard that can make the whole <a href="https://glowing.com/glow-fertility-program">IUI</a>/catheter insertion a lot more challenging (and uncomfortable) than it otherwise might be. 
Does anyone have any experience with <a href="https://glowing.com/glow-fertility-program">IUI</a> and a twisty cervix? Lol, especially any nice stories like "hey, don't worry, I have that and it was all good..."