I had IUI w/fertility drugs this cycle and I had my preg test on 2/10/10 it was positive. On friday I started having brown discharge with mild cramping. On Saturday everything stopped no bleeding and no cramps. On Sunday the cramping returned and the brown discharge returned with some bright red in it (still nothing heavy) however on sunday evening I passed some grayish tissue. Now everything has stopped no cramps no bleeding. Is this normal?