Back from RE...
u/s confirms O. I've been given ten 200mg progesterone suppositories

to start tonight.

So much for skipping out on those this time.
I go back for P4 draws on Thursday (22nd) & Monday (26th) and then my test is the following Friday (30th).
I actually said "Wouldn't a P4 test be inaccurate since you're supplementing my progesterone?" They explained that they test to make sure it's enough... if it's low, then they'd tell me to double up.

I guess that makes sense.
I'm seriously questioning whether it's worth it to keep temping...