For any other employees going, are they expected to have someone drive them also, or to drive themselves and leave their car for 2 weeks in airport parking? Surely that is as expensive as a taxi?
He is DBU for asking you to get 3 small DCs, who are ill, out of bed at 4am, to be driven 180 miles and brought back home to bed, and while you are so heavily pg and with a serious health condition. (And what would happen if they pass it on to you before leaving - would you be expected to drive, just pull over occasionally to throw up, or if the DCs are still throwing up, must they come too?)
(YAa tiny bitU about the "jolly" part and being jealous of that. )
He is DBU to go on a 2 week work trip, including the jolly elements of it, while you are so heavily pg. And including being away over Easter (if he's only going tomorrow and it is a full 2 weeks!) - I know US operates differently about holidays. But even those that tend to want people to work weekends, generally see the longer Holiday weekends (Easter, Christmas, Thanksgiving, 4th July, and just things like Labour Day or other long weekends) as more family time, particularly as their actual holiday allowances are so much lower than ours.
(But not every company will allow employees to not go on such things - they'll expect their employees to put systems in place to support the family - so has he organized cleaners, or babysitters, or even wider family visiting to give you a break?)
He is DBU to expect to take your card with him for 2 weeks, and leave you with none. Absolutely NOT!!
Oh, and I presume he has set up contingency plans for childcare just in case you end up in labour or otherwise in hospital? Quite apart from the fact that he may miss the actual birth - just the logistics of minding the DCs if anything happens in his absence?