Teen mommy

Hi y’all! I’m 16 years old and me and my boyfriend are expecting a baby in November. I just found out today. I thought i was seeing things cause the line was so faint but my sister my best friend and my boyfriend all saw the line within 10 mins and it’s pink. My last period was February 3rd meaning I would be around 3 weeks! I’m absolutely terrified but still excited❤️ please give me advice on how to tell my mom.