Hi.
Sorry, I can't help you with the sperm question, but can offer my experience with Clomid. The FWIW disclaimer, every woman is so different and the effects can be so varied, that you might not want to read too much into it...
So, this is my first cycle on Clomid. I took it CD5-9 (today is CD10, so take that for what it is worth).
I took it at night, and the first night I sort of felt like I was coming down with the flu. Nothing terrible, tho. However, the next few days, I discovered a weepy, crabby, moody personality in me that I didn't know existed

FE: we saw the movie Babies on my 4th day taking it and I cried the whole way thru. It is not a sad movie.

Physically, it wasn't nearly as bad as I had feared- some hot flashes, a little bloated, some pretty bad insomina, and super frequent urination- but mostly it was the emotional roller-coaster stuff that got me.
Oh, one interesting thing- IC you chart. It spiked my temps A LOT. I mean, it looks like I have a thermal shift from the Clomid.
Here if you wanna look
On the lining issue- I'm taking evening primrose oil and baby asprin. You probably want to ask your HCP re: the baby asprin before jumping into that cuz it is kind of controversial.
Best to you and yours.