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.
If you are a resident of Mexico or Canada or a national of the United States (defined earlier), you can also claim a personal exemption for your spouse if your spouse had no gross income for U.S. tax purposes and cannot be claimed as the dependent on another U.S. taxpayer's return.ou can claim personal exemptions and exemptions for dependents according to the dependency rules for U.S. citizens. You can claim an exemption for your spouse on a separate return if your spouse had no gross income for U.S. tax purposes and was not the dependent of another taxpayer.