Can a warrant for your arrest "canceled"? Also, is there anyway to confirm that someone actually has a warrant for their arrest?

Askin for gf prio to this, she'd never been in any trouble what so ever with absolutely NO arrests. Also this happened in a completely different county than the one she resides in. Received a citation & was charged with simple possession (misdemeanor). She was given 11/29 probation in that county. Probation started 2/14/17, & was supposed to end last month, she failed to report for the month of April, & hasn't reported since. At the time she was pregnant, due in Aug 2018. How can she find out if there's warrant for her arrest? & If there is, how can she resolve it without going to jail? Her name has been ran by cops in her residing county & another, nothing was ever mentioned pertaining to her having a warrant in another county. Also, they have her work & home address on file, so wouldn't they have came to pick her up if there were a warrant? She is scared to death to go to jail, she has PTSD from being held at gunpoint by a police officer when she was 6 , jail is not a option.