Anyone choose to not go on progesterone and everything be ok? (For first trimester)

I’ve had losses this year and had been on progesterone. Not blaming progesterone on anything. If I get pregnant again do I really have to or need to do progesterone again. I kind of give up taking anything extra.

Is it truly important to get on it as soon as you get a positive? That’s always been what I’ve done. Been told by doctor. Just looking for advice if it’s really necessary. Especially with my losses. Don’t want to take anything anymore :/