Nervous to raise a boy?

Olivia
My gender scan is January 9. As the time gets closer I am becoming more nervous about the sex of my baby and it's all I can think about. I have always wanted a girl but I have a feeling that my baby is a boy. And that makes me nervous. I feel like raising a boy is so completely different. I know what to expect with a girl. I've dreamed of spa nights, shopping, you know all of that girly stuff. But a boy... Idk what to do! On top of that, the father of my child is veryyy unpredictable. I'm not sure if he'll even be in baby's life. He hasnt been very involved in the pregnancy so far. From what I've seen, boys always hold the most resentment when dad isn't around. They love their moms but they always want daddy in some form or fashion. Am I overthinking??