TXWY INCURSION OCCURS WHEN THE PIC OF A B737 TAXIES ONTO TXWY H INSTEAD OF TXWY G AT MCO; FL.

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AFTER LNDG ON RWY 35; I EXITED AT TXWY H3. THE TWR CTLR ASKED IF WE KNEW OUR RAMP ENTRY POINT. WE DID NOT AND HE SWITCHED US TO GND CTL. I CONTINUED HOLDING SHORT OF TXWY H ON TXWY H3 AS MY FO CONTACTED GND. GND ALSO QUERIED US ON OUR ENTRY POINT; WHICH WE STILL HAD NOT DETERMINED. HE THEN CLRED US TO 'TURN L THERE AND TAXI GOLF TO THE RAMP.' I MISTAKENLY TURNED ONTO TXWY H AND TAXIED SBOUND TO H4 WITHOUT CONFLICT. SEVERAL FACTORS CONTRIBUTED TO THIS MISTAKE. AN ACR B737 HAD TAXIED UP TO H3 ON TXWY G AS WE CLRED THE RWY. I HEARD NONE OF HIS COMS WITH GND CTL. TXWY G WAS CLOSED BTWN TXWY H5 AND TXWY F. NORMALLY WE ENTER THE RAMP AT TXWY E5 OR TXWY E4 AND WOULD HAVE TO TAXI ON TXWY H TO BYPASS THE CONSTRUCTION ON TXWY G. THE GND CTLR'S USE OF THE PHRASE 'TURN THERE' IMPLIED TURN ON THE TXWY IMMEDIATELY IN FRONT OF ME. AS I COMPLETED THE TURN ONTO TXWY H; THE CLRNC 'VIA GOLF' REGISTERED WITH ME. MY CONCERN WITH THE OTHER JET WAS THAT I DID NOT WANT TO CUT IN FRONT OF HIM ON TXWY G; HAVING NOT HEARD A CLRNC FOR HIM TO HOLD SHORT OF MY INTXN AND TO A LESSER EXTENT I DID NOT WANT TO DELAY HIS TAXI. THE COMBINATION OF GND TFC; TXWY CONSTRUCTION; AND OUR 'NORMAL' TAXI RTE TO OUR 'NORMAL' RAMP ENTRY POINTS MADE TURNING ON TXWY H THE LOGICAL RTE.