masturbation- what’s the difference?

hey so I have a suuuper personal question that I figured only fellow females might know the answer to.

so when I have ‘me time’ I usually only do clit stimulation, because to me it’s just more enjoyable. I notice that sometimes when I finish, it’s pretty ok, and then other times it’s a way different sensation that I would call ‘more sensitive’, almost feels like it just comes more naturally. It’s not a full blown orgasm, it just seems like at certain times or certain days the sensation changes.

does anyone know what influences these differences? Could it be a certain time during my cycle? ovulation maybe?