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Do khaṇika and upacāra samādhi count as jhāna? Ajahn Dtun advises against comparing one's experience with the textbooks. It is enough simply to know whether the mind is peaceful or not, studying one's own body and mind rather than theory.
When he first lived with Luang Por Chah, he says, Ajahn Chah spoke only briefly of upacāra and appanā samādhi and left the monks to develop concentration for themselves. In his own practice the mind at times became light, with pīti; at times the breath and the sense of the body disappeared and only knowing and emptiness remained; at times the mind stayed calm all day with no defilements arising. He never asked whether it was the first, second, third or fourth jhāna. Those who come to study with him, he says, should put such labels down.