I sincerely hope your CP fellowship is transfusion medicine or molecular. Transfusion medicine is the most useful and versatile of the CP disciplines for an MD - and the only one an MD can do. Not that you can't find a "job" say as a molecular pathologist, clinical chemist or medical microbiologist being a CP only pathologist, but it's going to be only in academia or in industry. And just FYI, in academic departments CP only pathologists are second-class citizens. Hemepath in some departments is classified as AP, but most are in the CP wing. Though I doubt that any hemepath departments would take a CP only resident - but I could be wrong.
If you already took and passed your CP only boards, part of that was signing an agreement with the ABP that you forgo the right to sit for the AP board sans doing an AP residency (3 years). This is why it is universally a terrible idea without equal to do AP or CP only. In an already suboptimal market for ideally trained graduates, doing CP only for something that an employer could get a PhD for less than half the cost of an MD is pure lunacy.