Why does TextFieldParser.ReadField remove consecutive newlines from middle of a field?

I am using VB.NET's TextFieldParser (Microsoft.VisualBasic.FileIO.TextFieldParser) to read a delimited file. However, when I try to read in a field with consecutive newlines within the field, the consecutive newlines are turned into a single new line. I would like the consecutive newlines to be preserved, but am unsure how.

Here's an example file that I am reading in with exactly one field. The quotes are part of the file's content and there are three newlines (including the two consecutive newlines following line 2):

"This is line 1
This is line 2

This is line 4, which follows two consecutive newlines."

Here is the code that I am using to parse and read in the file:

Dim reader as New Microsoft.VisualBasic.FileIO.TextFieldParser(myFile, System.Text.Encoding.Default)
reader.TextFieldType = FileIO.FieldType.Delimited
reader.SetDelimiters(",")

Dim fields As String() = reader.ReadFields
Dim line As String = fields(0)

And here is the content of the "line" variable. Note that there are only two newlines now:

This is line 1
This is line 2
This is line 4, which follows two consecutive newlines.

What can I do to preserve the consecutive newlines?