Datetime on pyspark.pandas not working correctly

[sumanth-tccc]

ps.date_range(start='1/1/2018', periods=5, freq='M') is skipping a month
DatetimeIndex(['2018-01-31', '2018-03-31', '2018-05-31', '2018-02-28',
'2018-04-30'],
dtype='datetime64[ns]', freq=None)