group plans are much more likely to accept a pregnant employee, or the spouse of a pregnant woman, on their plan after the employer's probation period is over. however, it's possible if the pregnancy is beyond the first trimester to encounter problems getting accepted. the fastest way to get the true answer in this situation is to find out what the employer's probation period is (90 days or whatever), and also ask the benefits administrator at the company to call the health insurance carrier and ask them directly. in texas, by law, pregnancy is supposed to be covered like any other pre-existing condition on a group plan. however, if pre-ex conditions have a waiting period of 12 months and baby is due in 6 months, it doesn't help a new employee much.