Sick and miserable!!!

Okay sooo I have been miserably sick for the past three days now and don't know what to do for relief!! I'm a first time mom (about 9 weeks pregnant right now) and I have congestion from hell, sinus pressure, migraine, chest congestion, and a really sore throat with swollen lymph nodes (which I hope isn't turning into strep) I went to the ER last night cause I felt really feverish, and they gave me a clear that I didn't have a fever. That was the major thing I was worried about. However, I can't take medications because I am pregnant! I have a poor immune system so my body is horrible at fighting these things off by itself. I tried doing a sinus rinse last night but I'm so clogged the water won't even push through. What do I do?!? 😰😔