Panicking about progesterone :/

Hi everyone

My doctor is doing some blood work to test my progesterone levels later this month (around day 21 of my cycle).

The last time they did it was 11 October (1/2 days after my period had ended) and the results were pretty low which I understand can be normal given they tested at the wrong time entirely (cue panic!)

Are there any things I can do to:

1) naturally increase my levels as precaution

2) medicine that can be prescribed to increase levels?

I have become Dr. Google and I am in a bit of a flap.