Ay, I'd honestly suggest checking with your OB about this one, mama, server rooms do emit some electromagnetic fields and heat, and it's better to get personalized advice from your doctor who knows your setup at work. A few of us mums in tech have asked the same thing, and most of our doctors said occasional exposure is usually fine, but staying for long hours might be something to discuss, especially sa first trimester like you. Better safe than sorry, diba? Feeling okay naman apart from the worry?