An occlusion device (10) for actively occluding the orifices (12) of the fallopian tubes (14) using the shape of the uterine cavity (16) as a guide to proper positioning of the occlusion device (10) includes a resilient body (18) including an elongated member (28) having a first end (30) and second end (32), and a first orifice plug (20) secured at first end (30) of the elongated member (28) and a second orifice plug (22) secured at second end (32) of the elongated member (28). The first and second orifice plugs (20, 22) are shaped and dimensioned to seat at the orifices (12) of the fallopian tubes (14) or within the fallopian tubes (14) as the elongated member (28) spreads outwardly with the first end (30) and second end (32) moving apart.