Best medicine to use

I only know of Tylenol but it won't help with this. My nose is like runny/stuffy. It's hard to breathe and sleep. My head hurts and feels stuffy. I'm 21 weeks and I am just so miserable. My toddler is sick too and he hasn't been sleeping well. I'm drinking hot tea, not sure if it's a good thing to do but it's helping with my sore throat. I had my flu shot a few days ago so I'm assuming this is just a respiratory infection. Any ideas what might help me at least breath maybe?