Maybe COVID?

I’m completely stressing out. I was suuuuper fatigued on Easter & also got a headache/ dizzy spells. Then on Tuesday night I had a moment of sob and now I’m having pain in my chest and my lungs kind of feel gross. I can still breathe but it’s a little harder. I brushed all these symptoms off thinking it was just from postpartum. But then I found out I was exposed to someone on April 1st that had it. I have a 2 month old so I’m absolutely freaking out. I’m scared I might have it and if I do I would’ve passed it to him already. I don’t have a fever or cough but I’m wondering what chance I have of actually having it. And if anyone has went through it with a newborn any insight would be great.