My Japanese teacher just gave birth and our long-term sub is having us make cards to congratulate her, we need to write something in Japanese, and I want to write something different than what she supplied us with, to spice it up or whatever. What would be appropriate to say in my card?
Edit: I'm not exactly sure what I want to say, but the phrase the sub gave us was the same thing for the entire class:
あかちゃん おめでとうございます
She said we could do something different, and I want it to be something that an actual Japanese student might say to their teacher had a baby to congratulate them. I'm only in Japanese 1, so I know hiragana and some words and phrases, but not nearly enough Japanese to write anything that would actually make sense in this context.