FEMARA 2.5mg ... no eggs cycle 2

Bee
Hi all,
I have PCOS 
Period are 29 days
Light bleeds for 3 days. 1 day being heavy.
After my laperscopy.. 
found out I had:
No cyst. No endometriosis. But a blocked left tube (unknown).
I was referred to FEMARA, 2.5mg
Done 1 cycle 
Nothing, did ovulate, 75..something
Just done cycle 2
Had a folicul track.  But they couldn't see no dominant eggs :(
Day 13,they don't think I've ovulated 
What I want to ask is.. i have PCOS .. how much FEMARA did you take to get pregnant? 
Did this drug work for you?
Bee
Just