Your pronunciation features the so-called "hard G" and amounts to /χɛr.'trœy̯.da:/ in IPA. This pronunciation of the name is most prevalent in the central-west of the Netherlands, i.e. the Randstad.In the rest of the country (particularly the south), Gertruida is usually pronounced with a so-called "soft G", which amounts to /ɣɛr.'trœy̯.da:/ in IPA. [noted -ed]