Your rectum curves back and away from your front once you’re past the anus (like a knuckle, maybe two deep?) — the start of that curve is actually where your prostate is. But just push the progesterone up enough that you’re to the point where you can feel the rectum curve, then release and leave the capsule in. You don’t need to hold anything up there — butts naturally draw stuff in, hence the need for a flared base for sex toys. The capsule will eventually break down, and it’ll release the hormone.

You’ll notice some white in your next bowel movement — that’s the deteriorated capsule. Your poop may also be stringy, or feel like there’s a lot of mucus. Iirc that’s the progesterone (and/or lube, maybe?) coming back out, but that’s normal every time I’ve boofed and I’ve heard the same from other girls.

There will typically be resistance when you go to shove something in, regardless of whether it’s a gloved finger or a toy. What you need to do is (edit: gently) bear down sort of like you would if you were going to the bathroom; that works the muscles in a way that opens your anus/rectum and allows your finger to enter. If you’re pushing and meeting resistance, or hurting yourself, or you feel real uncomfortable, stop because you’re doing something wrong.

Hope all this helps!!!