Celebrate the upcoming arrival of a new family member with this adorable "I'm Going to Be a Big Sister" t-shirt. This black shirt features a charming unicorn graphic alongside stylish lettering and a "September 2019" detail. Perfect for pregnancy announcements, sibling reveal parties, or everyday wear, this shirt is a comfortable and fun way for a soon-to-be big sister to share her excitement. Made from a soft-looking material, it offers both comfort and style. Let everyone know the exciting news with this delightful big sister tee!