As long as you were asleep and you are not sure if you had
ejaculation, your fasting is valid.

While fasting I got an inappropriate dream but I can recollect a little about waking & thinking bad thoughts after that & remembering I was fasting but still thinking it’s ok let me dream some more. I was probably sleepy that time. I’m not sure if I orgasmed so I’m not sure that I passed mani but is it enough to do astagfar & make up a fast for this just to be on the safer side.