If my husband is tested negative for covid can i assume that i am also negative?

No: It’s still possible you could test positive. And it is possible that your husband was very early in an infection when his sample was collected and that he could test positive later. Or you both could have been exposed later and then develop illness. So you should get tested too. I wish you well with your health!

COVID 19: I agree with Dr. Mandel. You could have been infected and may not have been. He may have tested when asymptomatic, presymptomatic or when his titer was just low - thus he might still be infected.