Travel in early pregnancy

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I have the opportunity to go to Aruba this coming weekend for a week. It would be amazing considering how cold it is where I live. We haven't booked the flights yet because I am concerned about traveling when I'm so early in pregnancy. I would

Just be over five weeks when we would fly there.

Am I being overly cautious? I'm concerned I might miscarry and will blame it on myself for traveling 🤦‍♀️