I took 50th of clomid this cycle. I got an positive opk on cd 16....on cd 24 my progesterone came back 7.5.

The nurse said it was highly unlikely I would be pregnant. On to the next cycle.
Well today is cd 28 and for 3 days I have had light brown discharge. I wouldn't even call it spotting. Basically only when I wipe.
No other symptoms or either pregnancy or AF.
Any thoughts?
I haven't take a test as assuming the nurse was right I gave up hope this cycle.
So I am in alot of pain today and the spotting is now more blood like. I would assume by the end of the day I will consider this CD1. Ignoring the earlier spotting that makes my luteal phase 11 days...spotting included...8 days. Is this something I need to bring up to the doc. This seems short if you include the spotting.
Re: stressed and confused FOLLOW UP
I hope you had fun in Mexico and get some answers soon! I would take a pregnancy test once a week until you get a bfp, AF or you go 60 days without a period. Good luck!