Virus caused cardiomyopathy, global hypokinesis of lv. ef35-40%.echo 4days later clear, ef57%. 12wk preg.feel worse now then before.what's going on?

Viral cardiomyopathy: viral cardiomyopathy can get better then worse with reactivation of the virus, renewal of fever, etc. Plus pregnancy increases your blood volume and right now you might have a lower blood pressure as you near the 2nd trimester. You will likely need many echo's and you'll be at risk of A-fib, which will make your symptoms worsen rapidly. Probably a good idea to call your OB and cardiologist.