First time mum

I decided in the middle of last year for personal reasons to become a single via IUI and donor sperm. My family have been super supportive from the start and my mum is going to be my birthing partner. I go up to Perth, Western Australia with my mum this weekend to sign off the paperwork and then the doctor said on my next cycle after the sign off we would do the first IUI. I'mterrified its going to hurt ALOT like the HSG test i had done previuosly. Any tips or tricks for how to make things easier would greatly appreciated. Thank you and good luck to everyone :)