A pregnant Milwaukee bus driver is being called a hero after her quick thinking saved 37 kids from a bus fire Wednesday morning at 18th Street and Highland Avenue. "I'm still kind of shocked after seeing the aftermath of the bus," Imunek Williams said. Williams was about two hours into her normal bus route to Milwaukee Academy of Science, where she would drop off 37 students ranging in age from kindergarteners to high schoolers.All of a sudden, half a mile from the school, something wasn't right."I started to smell something funny at the stoplight, and I just thought it was normal smoke coming from another car, because I always smell smoke or weird smells," Williams said. "But then as I started to drive more, the smell and the smoke started to get thicker."Williams almost ignored her intuition and kept driving another two minutes to the school, but chose instead to pull over. It would end up being a life-saving decision. WATCH School bus engulfed in flames"I was like, OK, let's just get off the bus," Williams said. "I just told the kids, let's get off. I evacuated the bus, made sure everyone was off, and made them line up against a gate. And as soon as we stepped off the bus, I turned around and the bus was just... in flames."Milwaukee fire officials initially told WISN 12 News no one was on the bust when it caught fire.Williams is grateful she pulled over when she did and said it's amazing to know she made a difference in the lives of those kids. "Honestly, it feels good seeing the kids this morning and having them thanking me, the school thanking me," Williams said. "It just feels good that I was able to get them off and no one was hurt. That's just my biggest concern because if it was my kid on the bus, I would want the bus driver to do the exact same thing."On Thursday, Williams picked up her kids on their regular route. Not even a bus fire will stop her from making sure they close out the school year."I actually picked them up this morning, and they actually weren't expecting to see me," Williams said. "They were like, 'Oh you're back? You didn't get burned up?' I said 'No, I'm still here.'"Emergency crews took Williams to the hospital to evaluate her and her baby. They both are healthy. She's due in August with a boy. The cause of the bus fire is still under investigation. A GoFundMe page has been created for Williams to recognize her heroic act. The money will go toward her new baby and family.