i thought for sure i had been thru a town called that (where they made an awsome fudge) but when i looked for it all i could finid is this australian artist's page: http://www.jacinta-stewart.com/
this band: http://www.chunkymusic.com/
this san francisco fashion designer: http://www.jacintadesigns.com/
i see several mentions of this name in Australia....nice name.
Lucky girl! good luck to you all...i had little ones 20 and 25 years ago. they grow so quickly...enjoy your time together.