Suckling Kitten Advice

Hi everyone, I adopted a stray kitten who was 5-6 weeks old, found under a car and taken in by a neighbor. She's about 9-10 weeks now, and I have noticed she spends time in her crate suckling and kneading on her blanket/crate pad. I assume she's doing it because she was weaned from her mom too early, but is it something I should stop her from doing? She's still pretty young, but she has all her teeth and is eating wet kitten food. TYIA!