it's fine....thousands of woman walk through, around or near metal detectors everyday.
I'm 6 months pregnant now, and 2 months ago I travelled by air to visit family in Massachusetts and I walked through a buncha metal detectors and my baby is perfectly fine.
Pregnant women travel all the time.
No need to worry.
It's X-Rays n stuff like that that is harmful to the baby.
If you're concerned you can voice your concern at the airport. Then they may have to do a search on you.
A metal detector is not an X-ray. There's no radiation involved.
Like JoyRenee said if you are concerned just voice your opinion. I was flying a couple months back & they noticed I was pregnant & asked me if I felt safe walking thru the metal detector & if not they would just take me to the side & use the hand held on me that way they could stay away from my belly!
lol i asked em right when they told me to walk through. i was like 'HEY! i'm pregnant. will this hurt my baby?!" and they were like "no ma'am its perfectly safe." but just ask anyways. i felt kinda silly cuz i was only like nine weeks at the time and couldn't see a belly, but i didn't care. didn't want my baby getting Xrrayed lol