It could be but the belly is throwing me off. It's not quite the traditional belly of one but it does have some traits. I had a YB male that produced babies with a very obvious belly pattern, but he also produced some with a less obvious patten that were still yellow bellies.

With that one I'd hesitate to say yes for sure without breeding it.

Post full body pics and try to get it to coil up, then quickly flip it over with your camera ready and get some more complete belly shots.