It does take the place of your cm. And also, vaginal discharge is cm

It changes throughout your cycle that's all. You shouldn't have any discharge but the cm meaning if you do its a sign of infection etc - which im sure is not what you meant when you said discharge, lol!
I don't have probs in the ewcm deptm but preesed (zestica and conceive plus) all help the little suckers in the vaginal canal and i don't see how that can be a bad thing, so im using it now
Oh, and yes. Im on epo because its known to regulate your hormones and generally help a woman's system. You do as Africaqueen said, though get the super charged variety if you wanna use it for cm purposes. About 1000- 3000mg a day. They've got it at Boots.
You could also try drinking grapefruit juice everyday, or a tablespoon of honey everyday and the piece de resistance; cough syrup. It has to only have guaifenesen as an active ingredient and be listed first on the label. Tesco sells an ' Adult chesty cough syrup' you can use. You can google using cough syrup for cm for exact measurements of how much to take. It helps building up the ewcm in the same way it gets phlegm from your lungs- nice, i know.. but it does work apparently

And a lot of women on clomid use it as clomid can dry up the cm.
The last resort, albeit not as crazy as it sounds, is using eggwhites. They are pure protein like sperm and work the same way as ewcm, nurturing and helping them climb up the vagina. Its also cheaper than preseed et al. And no, you wont get salmonella (it cant penetrate the vagina ) and all eggs in UK are treated anyway. Get organic ones and use room temp - cold eggwhites up the hoohah is not good, lol!
Hope that helps and good luck, hun!