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 are confusing things. You can claim anybody as a dependent if you yourself provide food and housing for more than half a year (6months +1 day). Since you don't feed him or house him-he is not a dependent. You could file as married on your tax return if you are legally married and he would qualify as a dependent even if he's incarcerated.