TODAY | January 06, 2013
>>> now, to london and criticism that kate middleton 's parents may be trying to profit from her pregnancy. annabel roberts is in london . good morning.
>> reporter: good morning, erica. well, the middletons have been running the family business for 30 years but some say following their daughter's marriage and pregnancy some of their merchandise is, well, awkward.
>> they make a lovely couple. they are great fun to be with and we've had a lot of laughs tog.
>> reporter: carol and mike middleton have watched proudly as their daughter grew up, found her prince and married him. throughout these years, they have run a mail order business selling party paraphernalia. it has made them a fortune. a line of baby shower products is raising eyebrows. a new little prince and princess is written across them. some are asking if this is appropriate given the nation's future, little baby prince or prince ses is also their grandchild.
>> some think this is a little bolder. people are thinking, hang on, she is going to be the future queen one day. it doesn't feel right that her mom and dad 's companies are doing these ranges on prince and princesses. for them, that is what they do. prince william knew that is what they do when he started dating their daughter.
>> reporter: when the queen marked her diamond jubilee , the nation celebrated with her. street parties were held across the country. the middletons took advantage of that occasion to sell juply themed party cakes. pippa middleton has dived into the parties with a book of how to celebrate. sales have been disappointing. she joked her next publication should be a different kind of celebrations called bottoms up.
>> she is one of the most famous women in the world for being the bridesmaid with the bottoms. unless she marries will, there is not that many hopes in terms of career prospects. kate's family business built the fortune that helped her come this far but it could become an embarrassment for her and her in-laws.
>> reporter: further details of kate's pregnancy are eagerly awaited here in london . she has recovered from that early bout of morning sickness and should be well enough to celebrate her 31st birth day on wednesday. but, i understand, brother-in-law, prince marry will not be back from afghanistan in time to join the party.
>> anabel roberts in london , thanks.