Femara (Letrozole) lack of symptoms?

I can already tell that this round is different from the last. Last round 2.5 I had five high fertility days before I peaked on the 6th day. My progesterone level was 15. I ovulated but didn’t conceive.  I had sore nipples for three days after my peak. I had lots of cramps and a headache all those PMS symptoms until my period. Now this round 5.0 I only had one high fertility day before I peaked the next day. I had no symptoms (expect little pinch on my left ovary 3dpo) up until 7-8dpo I started getting really tired like taking naps which I don’t and extremely hungry! I have subtle to no cramps which is extremely unusual. I’m usually cramping for 2 weeks before my period. I just got my progesterone levels back and it was 25! I’m 9dpo currently.

Now my question is, has anyone got a BFP with little to no symptoms? I just find it odd. I don’t really have any of the pms symptoms I normally get!