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.
This chapter discusses the following topics. 1  Personal exemptions â You generally can take one for yourself and, if you are married, one for your spouse. 2  Exemptions for dependents â You generally can take an exemption for each of your dependents. A dependent is your qualifying child or qualifying relative. If you are entitled to claim an exemption for a dependent, that dependent canât claim a personal exemption on his or her own tax return.