here's the thing; in my opinion, readings from your hydrometer in mid-flight simply indicate whether your yeast are working or have stalled . The KEY readings are before you pitch (add) the yeast) and when you THINK the fermentation ha ceased. I am unclear what your starting gravity might have been , but I can tell you that if you are using legitimately made /sold honey, gravity readingss will be 1.035 per pound per US gallon. Two pounds in the same volume will read 1.070, 3 lbs , 1.105 and all wine yeasts should be able to ferment that amount of sugar brut dry.
The higher your starting gravity, the longer it will take yeast to fully ferment your mead (or wine), but note, honey has NO nutrients that the yeast need and can use, so mead makers should add appropriate nutrients to the must (the honey and water prior to the addition of the yeast). Many of us will use Fermaid O or K. Some will use nutrients packaged for brewing beer. DAP (Diammonium Phosphate (DAP) does provide nitrogen BUT you can think of DAP as candy for yeast. It does NOT contain the micro-nutrients and vitamins that yeast (like humans) need to thrive. Historically, the lack of nutrients that honey possesses is one reason why mead makers could expect their meads to need 12-24 months beforethey were ready for drinking.