Most M.D.'s recommend that it is best to wait until at least the 1st day of your missed period before you take a pregnancy test. [ Source: http://www.chacha.com/question/how-many-days-should-you-wait-after-a-missed-period-before-taking-a-pregnancy-test ].
It is typically found conformally overlying the Marcellus Formation, and underlying the Tully Limestone (where present). The Mahantango has been divided into four members: 1  Tully Limestone: a fossiliferous calcaerous shale. 2  The Tully is a conspicuous formation, which separates the Mahantango from the Hamilton Group.3  Sherman Ridge: Olive gray, fossiliferous, claystone and siltstone with interbedded fine sandstones coarsening upward.t is named for the North branch of the Mahantango Creek in Perry and Juniata counties in Pennsylvania. It is a member of the Hamilton Group, along with the underlying the Marcellus Formation Shale.
Lake Erie is the shallowest of the Great Lakes because the ice was relatively thin and lacked erosion power when it reached that far south, according to one view. As many as three glaciers advanced and retreated over the land causing temporary lakes to form in the time periods in between each of them.