Taking medical leave from work?

Alexa • Micah Tyler born 08/31/17 💙
I have suffered with extreme morning sickness and constant vomiting for weeks and I know it's not going to get better for another few weeks. I'm 10 weeks today. I want to take like a medical leave from my job because I'm constantly having to miss or be late and I can tell it's stressing everyone out like all of my managers etc. I can tell that they're tired of it but I can't help it. Has anyone ever done anything like that? I am supposed to be at work right now but I'm waiting for my nurse or Dr to call me about my options. I can't even hold down water.