Vaginal Progesterone Tips Please!

I'm on vaginal progesterone (one pill before bed time due to a history of pprom). I'm trying to take as many precautions as possible and had a few questions:

• did you wear gloves when inserting with your finger?

• how far up did you go? I'm terrified I'm just getting to enough where it doesn't fall out at the opening

• did you clean anything out after?

• Any side effects? how did you handle them?

- anything preventative you did? Probiotics, etc?

Thank you!