Pregnancy in Sylvia Plath's "Metaphors"

Sylvia Plath's poem "Metaphors" is a very unique way to express a pregnancy. She uses metaphors to express her opinion about pregnancy instead of just saying what she feels. Plath uses nine syllables in each line, which is a symbol of a nine-month term. The speaker of the poem describes how she feels while being pregnant. She refers to her cravings and how uncomfortable she is. She uses words like "an elephant" and "a ponderous house" to explain how big she feels. She is unaware of what is going to happen to her body next. She has accepted the fact that her body is changing, and there is nothing she can do about it. She feels uncomfortable, resentful and confused about the pregnancy and really does not want the baby.
The speaker is depressed because of the weight she has gained and really wants to end the pregnancy. She continuously eats and craves foods. She cannot stop the cravings and hates every minute of the pregnancy and just wishes it was over. She says that she is the "means" for the baby to be born and only the "stage" for the baby to perform on(7). She does not like being the "stage" for the baby. She can no longer hide the pregnancy and is very uncomfortable with her physical condition. She states that "[she has boarded] the train [and that] there's no getting off" (9). The statement implies that she is now pregnant and too far along to stop the pregnancy, so she has accepted the fact that she has to have the baby. In this poem, there are no words saying that there is a man or companion in her life.