Confused with +opk but lower progesterone on clomid

Jen

Hey guys. I feel like I'm losing it a bit today. We've been ttc for 9 months now and this is my fourth round of clomid. First round was 50mg and my 21 day test was a .5. They upped me to 100 and I got a 7.71 and then a 8.2. Now this month it came back at 4.6 - even with a +opk. I even used pre seed and did acupuncture. Right now I'm at day 23 and am normally at 29 day cycles. I'm trying to not lose hope for this cycle but I'm just mind blown that the number came back so low.

Anyone have similar experience? Especially that end with a BFP? :) thanks all