Zodiac Signs? Help

Kristina β€’ Mama to 2 beautiful baby boys πŸ’š Nov. 22nd 2016. Oct. 22nd 2019

Anyone really knowledgeable about zodiac signs? or Has a child that was born November 22nd 2016 also? That's my 17 month old sons birthday, and supposedly Nov. 22nd is on the cusp of scorpio and sagittarius. I've heard it depends on the year and time also apparently, but I'm trying to figure out his sign to include it in a tattoo I'm getting and I'm just confused over here lol I don't know a ton about zodiac signs so if someone can help that'd be greatπŸ˜‚πŸ™Œ TIA