I don't think she should have any pressure. Two months ago she was big underdog vs Siriakova and she is 2 years younger.
True is she should win by her quality but when you are that young you have a right (let's say that) to loose in R1 or 2.
I'm just talking about the pressure of expectations - now everyone will expect her to do the same what she did a day ago in doubles. Not to mention that this h2h makes things even tougher in a sense, adding to the pressure, eventhough it's great that she won both matches thus far played against her next opponent.