Count number of rows when row contains certain text

You can just filter the df with your boolean condition and then call len:

In [155]:
len(df[df['Status'].str.contains('Planned|Missing')])

Out[155]:
2

Or use the index True from your value_counts:

In [158]:   
df['Status'].str.contains('Planned|Missing').value_counts()[True]

Out[158]:
2