View full size image. How long a healthy pregnancy lasts can vary by as much as five weeks, even when doctors precisely determined the date of conception, a new study suggests.
Exemptions for dependents. You can usually claim an exemption for each of your dependents. A dependent is either your child or a relative who meets a set of tests. You can't claim your spouse as a dependent. You must list the Social Security number of each dependent you claim on your tax return.
You can claim this exemption even if your spouse has not been a resident alien for a full tax year or is an alien who has not come to the United States. You can claim an exemption for each person who qualifies as a dependent according to the rules for U.S. citizens. The dependent must be a citizen or national of the United States or be a resident of the United States, Canada, or Mexico for some part of the calendar year in which your tax year begins.