We tried it a couple of weeks ago with no luck. Not really surprised, as it says it most likely wont work until 2nd trimester. But I want to go try it right now, so I will tell you if it worked when I get home.
Thank you Aimee and Mike.
Your baby is about 2-1/2 inches from head to rump, and weighs just about 1-1/2 ounces. His heartbeat should now be detectable with an electronic Doppler (or heart monitor).
Your baby is now about 1-1/5 inches long (about 4 centimeters) -- and his head takes up about half of that size!
Right now, he weighs less than half an ounce. By the time your child is born, if he weighs 7-1/2 pounds (an average birth weight), he will multiply his current weight nearly 240 times.