Got bronchitis, HELP !

Still struggling to breathe with how sick I am 😞 not coughing as bad and started finally bringing gunk up but I can’t breathe even without a runny or stuffy nose 😢 not sure what to do at this point it’s almost as bad as when my lung collapsed, had to take deep breaths to get 3 words out - that’s me now just not AS bad just a struggled to breathe and speak. This can’t be good for the baby I feel like I’m not getting enough oxygen ? Called my OB waiting for someone to call back. Any thoughts moms ? I’m 37 weeks and 5 days.