Amanda Holden announced that she's pregnant on Twitter - which seems to be a massive celebrity trend at the moment.Although the news was originally broken through a press release which confirmed that she's leaving her role as Princess Fiona in Shrek The Musical, Amanda was beyond the three month mark and so broke the news herself on Twitter."Chris, (daughter) Lexi and I are delighted to announce that I am pregnant and we are expecting a little girl. "Lexi's question of the day (and most days) 'Mama when are you going to get a baby in your tummy?' Happy to say TODAY Lexi! Mama is pregnant! Yay... Am thrilled and terrified all rolled into one!"We wish Amanda all the best, especially seeing as she tragically miscarried at the beginning of the year.