Zofran... help.

Breann
So I am super sick 
I have been for like a week now none stop throwing up everywhere and don't stay off the toilet with a bucket under my head. 
I had zofran and I took just one cause my aunt told me my cousin took them while pregnant now I'm freaking out cause I took just ONE made myself puke and everything because of all the risk online says and I don't wanna lose my baby. My cousin took them a lot more will my baby be okay😑?? 
Has anyone else took them?