Does coffee creamer or milk count?
Yes. Anything with calories counts, even if it goes into coffee. A splash of milk may be too small to matter for some people, but repeated pours of cream, half-and-half, flavored creamer, sugar, or syrups can become a meaningful part of the day.
You do not need to drink black coffee unless you prefer it. Measure the addition for a week, learn the real amount, and decide whether it fits. If fat loss is stalling, liquid calories and "small" add-ons are often worth checking.