there is no such thing, and even if they put progesterone in something like an oil with estradiol (so it's a 2-in-1 medication like those jars with both peanut butter and jelly in a single jar, which is what I assume you're imagining), the problem is that progesterone metabolizes completely differently than estradiol.

Prog has a half-life of like 22 - 26 hours when taken intramuscularly. Estradiol valerate has a half-life of around 3.5 days when taken intramuscularly.

You wouldn't be able to inject them at the same time, they need to be taken at different frequencies.

Also, I've never heard of people getting their hands on injectable progesterone, at least in the U.S. As far as I know, it's not a common way to take the medication, while it is common to take it orally, vaginally, and rectally.