I don't want that...

So, I had to go to the supermarket today and took Ella with me. We went down the aisle with the feminine hygiene products. She grabs a box of tampons and says " What is this mom?" Ella is only 7 but is prepubescent so the doctors have recommended that we have the conversation etc. So i tell her in age appropriate language what happens once a month...she looks at me and says "mom, i don't want that."