hi ..i am 23 yrs old and i wanna marry my boyfrnd who is already married and have an year old daughter.so my querry is whether i can do such thing so that i cant b pregnant again in life. i wanna get rid of motherhood permanently.are there any operations or any tips so that i can do the thing .the thing is that should be a natural one.one should believe that i have the problem naturally and not that i had undergone some surgery for this thing.could u please suggest me ..