Advice on helping my toddler transition

I’m due with my 2nd baby another girl in may, I have an almost 4year old in march. How did yall help your toddler’s transition for having a baby sibling? She’s been an only child obviously for almost 4 years. She is really excited to have a baby sister but I need tips on what I can do if she is feeling stressed about it?? Or feels I don’t love her anymore I just worry she won’t feel my love ??sib