It doesn't look like you understand how to do a fishless cycle.
You need to be dosing ammonia. Either pure ammonia, or ammonia chloride, or fishfood, or a decomposing composing cocktail shrimp. Its probable the ammonia you are seeing is from dead, decaying plant matter, or maybe its leaching from your substrate. There wont be enough ammonia from these sources for a long enough period of time to cycle a tank.
Ammonia turns to nitrite and then nitrate in a cycled tank. You have only just started what is typically a 6 to 8 week process to complete a fishless cycle, so your cycle hasnt even started yet. What you are seeing is the ammonia coming from whatever source it is coming from. Because you arent cycled, none (or very little) of your ammonia is going to nitrite which is why you arent seeing any nitrite. A very small amount of nitrite might be going nitrate which is what you are detecting. It doesnt take much ammonia to result in a lot of nitrate.
If you need further guidance on the nitrogen cycle and how to do a fishless cycle let me know.