HELP!!! so we got our 2 year old her toddler bed about a 3 weeks ago , first week she slept GREAT! but for 2 weeks now she wakes up in the middle of the night and crawls in our bed and wants to sleep with us,

is there any reason why she's doing that ? and what can i do to make her stay on her bed?

im due tomorrow with second baby, (not sure if that's the cause she feels baby coming and just wants to be with me)