Hi mama! Okay naman ang byahe, lalo na kung wala kang cramping or spotting, pero honestly 100kms every other week ay medyo frequent pa rin for first trimester, best to check with your OB kung okay lang talaga yan for your situation kasi bawat pregnancy is different. A few of us moms sa circle namin ay nag-travel din early pregnancy pero mas ginawa namin ito sparingly lang at alam namin okay kami ng doctor beforehand, kaya siguro mag-consult ka muna bago mag-regular travel pattern? Take care, mama!