Is it normal for a 3 month old baby to skip heart beats?

I just noticed that my beautiful bubba sometimes skips heart beats.
I noticed last night as I put my hand on her chest whilst she was sleeping as she looked so cute and I noticed that her wee heart sometimes skipped beats – is this normal?
I have an appointment next thursday with her pedi but thought I’d ask here as some mothers might know.
All her check ups have been totally fine…

Thanks!