So, I am following up as promised with some info, but it might be slightly "off". At any rate, to thin out EWCM (I don't know if it increases it, but maybe in some people), you can take mucinex (or anything with Guaifenesin). I was told by my Natpro dr to take (and here's where I don't remember exactly the dosages, but I think I am close-I can't find the paper) 300MG of mucinex, 2X day starting 5 days DPO (so you have to kind of guestimate this date, or just start early). You can also add in up to 400MG of Vitamin B. Stop after O. I have read from some others in this forum that some people need even higher doses of mucinex to thin out the EWCM.
For those (like myself) that need an extra boost due to sparce EWCM, you can use pre - seed! Search the forum for that as well and many posts will come up (as well as some successes by people who used it).
Also, do a search for mucinex and you will find an abundance of posts on this, and many other suggestions. (someone recently posted that mucinex didn't really help them, so keep that in mind as well).