12 and have had my first period

Hey guys 👋 it all started at my friends house, it was really awkward and I had no idea what to do! I didn’t tell my friend bcs things would just go really awkward. So I waited for my mum to come pick me up. My big sisister was in the front and she’s 15, but the most embarrassing thing is she had her period when she was 14 and I’m 12! I waited until we got home so I could get some privacy but I couldn’t build up the courage to tell my mum. I went to the toilet again and my underwear had red spots all over them! I threw them into the washing up basket and thought it would be the best way for my mum to find out. In the end we had a nice chat and told me it’s natural and so on, we’ve never been more closer to each other before!!! That’s my story xx