Flu or cold?

Hi all, for the past three days I’ve had sudden shortness of breath, a runny/ stuffy nose, sore throat, a slight cough, it hurts to breath in, a headache and chills. I went to the hospital last night and got tested for flu and came back negative but I read that they can sometimes be 50%-70% accurate which is now stressing me out. I’m 14 weeks pregnant and heard so much about the flu being dangerous and causing complications. Even tho he said I was negative for flu I feel this is more than just a common cold. My temperature seemed fine and blood pressure was too. Any advice or has anyone had the flu when pregnant or anything like this!