New baby new bed

Alejandra
So I'm due in June and my daughter right now is currently 15 months. I've been thinking if I should get her a toddler bed and use the crib for up coming baby. She hasn't been using her crib since I've become pregnant she's always sleeping with me instead. So I'm not sure what to do I don't want to make her feel like her sister is taking over. But I figure it's time for a bed for her.