The vote will happen very soon. The National Right to Life Committee has a convenient page for finding your representative's phone number.
Some Republicans are proposing to suspend all Title X funds as a cost-cutting measure. A lot of people are angry about that, and abortion advocates are eagerly lumping the Pence Amendment together with that, calling both "anti-woman." Remember that the Pence Amendment is not the same bill! Simply put, the Pence Amendment will solve the Planned Parenthood funding problem without decreasing the amount spent on legitimate women's health programs under Title X. Any money Planned Parenthood loses will be diverted to eligible health providers.
Via Jill Stanek, here are Congressman Pence's comments on the amendment: