How long after sex should I wait to check my CM? TMI photo included

Sk

So no matter what I do I can’t tell if I have leftover semen all through the day or if it’s EWCM.

For example he had sex yesterday around 11:30pm and then I checked my CM at noon the following day and got what looked like EWCM mixed with maybe slippery watery CM.

I checked twice more throughout day and had what looked like EWCM with some white mixed in (I didn’t get a pic of it to compare).

So how long should I wait to rule out that it’s left overs? I feel like it sort of dried up right before we had sex after a shower maybe for over checking LOL.

I looked on the toilet paper and couldn’t really tell because if it was on top or soaking in and I couldn’t do the water check because it wasn’t enough each time to get off of me into the water 🤣

Photo of what it looked like at 12 noon (had sex the night before)

I know it might seem like a dumb question but it is my first medicated cycle and I have only ever ovulated twice in my own so I’m lost! I’m on cycle day 14 of my first Letrozole 5mg cycle. My opks are slightly rising:

Easy at home brand at .48 and proov brand at .56

What are your opinions and advice! I will gladly take it all!