If you have problems producing EWCM, there are methods that can help with that.
Using Pre-Seed internal lubricant can give DH's boys an extra boost.
Using Mucinex or a specific type of Robitussin can help thin out CM as well. The active ingredient you're looking for is Guafenisin, nothing else! It's an expectorant and loosens up mucus throughout your entire body. You can Google for more info on Mucinex/Robitussin regimens and what exactly to look for if you want to buy it -- 'cause there are different types of both.
Lastly, I'd suggest at least using ovulation predictor kits, and if you can, charting your basal body temperature. These together can predict and confirm ovulation.
Hope that was helpful

I'm sorry about your miscarriage and your body being rough on you now.