Ethleen Took an At-Home Pregnancy Test That Came Back Positive,so

Ethleen took an at-home pregnancy test that came back positive,so she went to her OB-GYN to confirm that she was pregnant.After ordering some bloodwork,the doctor confirmed that Ethleen is seven weeks pregnant.She is very happy about the good news and wants to learn more about what has been (and will be) happening to her baby since it was conceived,so she asks the doctor for some literature.Describe what information would be provided in the literature regarding the physical changes that Ethleen's baby has been (and will be) going through in relation to the three prenatal periods.