HELP! Toddler won’t sleep.

Jill

My toddler goes to bed fine... but a few hours later she wakes up screaming. I can never seem to get her back to sleep in her bed. She’ll fall asleep in my arms or in my bed. I’ve been up with her for 3 hours tonight so far because I don’t want to begin habits of her sleeping in my bed with a new baby coming in July.

Help!