Got exposed to pepper spray today :( is it dangerous for my baby?

Rey
Hi all,
​Everything was going just awesome, my maid and I were cleaning the house today, I was cleaning the table in one of the rooms and the maid was cleaning the shelves just  a step away from me. She suddenly started coughing and left the room, it took me few minutes to realize she accidentally pressed a peeper spray while dedusting the stuff on the shelves, she was trying to tell me that but she was coughing so much she wasn't able to talk! 
​So we both are fine now, it's just that I am extremely worried for the baby, i wasn't exposed for a long time and it was just one small puff,  do you guys think it may hurt the baby?
​I'm 18 weeks now.
​Please share your experiences with me if you have any, 
​Thanks