PHILADELPHIA (CBS Philadelphia) — A man got the surprise of his life when he turned to Reddit to figure out why he says his wife’s Fitbit was showing high heartbeat readings.

He wrote under the username YoungPTone, “My wife’s fitbit is showing her heartbeat being consistently high over the last few days. 2 days ago, a somewhat normal day, she logged 10 hours in the fat burning zone, which i would think to be impossible based on her activity level. Also her calories burned do seem accurate. I would imagine if she was in the the fat burning zone she would burn a ton of calories, so its not lining up.”

One user had an unexpected idea, “Has she experienced anything really stressful in the last few days or is it a possibility she is pregnant?”

YoungPTone replied, ”Pregnancy is a strong possibility, didnt know that would jack up the heart rate. I might be a dad, YIKES. now i gotta watch my own heart rate lol.”

A day later, he confirmed the news, writing: “I’m going to be a dad!”

He soon edited his original post saying, “Thank you all for your overwhelming support! Its been awesome to read all the comments and well wishes, even the comments questioning whether I am in fact the father (gotta have a sense of humor on here, right?) I just wanted to say this is indeed real, I do not work for fitbit, this is not guerrilla marketing. This is real, the fear is real, the excitement is very real! I am a regular guy who was just looking for the communities help with his wife’st echnology issue (we’ve all been there, right?). Little did i know I got alot more than I bargained for! Now I’m a regular guy who is preparing to have his first child brought into the world, god willing, in Oct 2016.”

CBS News says a quicker heart rate is indeed a possible sign of pregnancy, according to Beth Israel Deaconess Medical Center experts, who say on their pregnancy site that when you become pregnant your heart has to work harder than ever, cardiac output is dramatically increased and heart rate and blood volume increase.