No, you're definitely not alone. I'm getting it a lot with the Evorel patch.
I started my periods when I was 8. For the first 6 months my mum kept asking me if I was wiping my bottom properly as I was leaving brown "stuff" in my undies

Took her another 6 months to twig what was happening to me.
Gotta admit, it was a horrendous experience for me. I used to start dreading swimming with the school. My mum had informed the male teacher, but he still hit me when he found me in the pool changing room, refusing to go in as I'd started my period on the way there. He acted like he didn't know why I wouldn't go in and started pushing me around and hitting me. I wish I'd had the guts to tell my mother back then. Instead, I'd make excuses to avoid going.
I'm glad it seems so much easier for young girls these days. Now, we just need to make things a but easier for us older gals.