The mass that makes up your body and everything inside your body is attracting Pluto. If you did not exist, then that mass would take other forms, and it would still attract Pluto by the same amount. I don't want to offend, but you know where all your mass came from, and where it's going. It would likely be in one of those forms had you not been conceived, and would still attract Pluto. Pluto is not affected by the fact that you are alive in any way.
Let us assume that you have a mass of $60 \text{ kg}$. Pluto is $7.5 \times 10^9 \text{ km}$ away, that is 4.5 light-hours. Pluto's mass is $1.3 \times 10^{22} \text{ kg}$.
The force that you attract Pluto by (and Pluto attracts you by) is: \begin{align} F &= G\frac{M_1M_2}{d^2} \\ &= \left(6.7 \times 10^{-11}\right)\frac{60\left(1.3 \times 10^{22}\right)}{\left(7.5 \times 10^{12}\right)^2} \\ &= 9.2 \times 10^{-13} \text{ N} \end{align} For comparison, this is the force that approximately 100 bacteria were to exert on your hand if you were to hold them.
Though other posters mention your light-cone, I doubt that your mass differs significantly over the course of a 4.5 hour period. Technically, the force that you exert on Pluto right now is your mass from 4.5 hours ago. Don't eat or go to the toilet for 4.5 hours, and you'll be fine.
