Is this ovulation or implantation discharge?? *TMI*

So I’ve never had this before and my period is not due for another 17 days. I have been having unprotected sex (pull out method) with my boyfriend of 5 years and I’m curious to know if this is ovulation discharge or implantation discharge. These pictures aren’t mine, I found them on google but look exactly like what I had yesterday.

Let me know what you guys think.

Thanks in advance!

If you do think it’s implantation, how soon after having implantation discharge can I test?