In Jain Dharma, there is no fixed number of manushya bhavs a jiv will have after coming out of Nigod.

• A jiv may take many bhavs, few bhavs, or even innumerable bhavs before getting a human birth.
• Whether a jiv gets manushya gati depends on its karma, especially the rise and bondage of nāma karma, gotra karma, and other supporting karmas.
• Human birth is very दुर्लभ and comes only when the right karmic conditions are present.

So the correct Jain understanding is:

Nigod se nikalne ke baad manushya bhavs ki sankhya fixed nahi hoti — yeh karma par nirbhar hoti hai.

If you want, I can also explain this in the language of Jain cosmology with the sequence of jiv gati after Nigod.