Blood Drug Testing

Is it possible to have a faulse negative blood test?

I am always very regular and this month we were following my cycle of ovulation closely. I ovulated on the 12th Sept and still no period. All pregnancy including blood are coming up negative. Still no period. Sore breast cloudy discharge, period cramp no period. Whats going on here?

Public Comments

1. of course it's possible. If it was done too early for example. Or if there was a manipulation mistake at the lab. Go for another one a bit later.