Lost voice while pregnant

Hi friends!

I’m 23 weeks pregnant and over the last two days have slowly lost my voice. It’s now completely gone! I have no other symptoms of being sick at all. No allergies, congestion, fever, anything! My throat is slightly sore but I can’t tell if it’s a symptom or just cause by straining hard to attempt to make a sound. It’s super strange and I’m not sure what to do to help it return so I can work. One of my friends suggested it could be caused by my heartburn. I’m currently unable to call and ask my doctor because I can’t speak 😂. Any suggestions or ideas?