Clomid and HSG test....

Hey friends. I am a day away from my most fertile day if you are using the app and I had a vaginal ultrasound today where the Dr. told me unfortunately he doesn’t see my cervix fully open. He has prescribed me Clomid for next month and I also have to have an HSG done. I am feeling really nervous about both. I am just wondering what everyone’s experience with one or both of those things is. Any success stories with Clomid? Or after an HSG? I am praying for baby dust for everyone currently TTC.