Hi dear...Embryology and Psychology are the most demanding field in present time. Despite being different poles but both the fields are equally good in respect of earning and scope in India as well as in Abroad. No field is good or bad, it's on you ,how you make it. You will enjoy your field if you have to choose according to your goal and interest.

Embryology is a  branch of biology which deals with eggs, embryos, and sperms. Minimum qualification to appear in Embryology field is graduation in zoology, Biotechnology, Bioscience, Biochemistry, Reproduction, Microbiology, Physiology with minimum 60% aggregate

Psychology is a study of human and animal behaviour. Psychology studies emotions, behaviour and Reactions.Minimum qualification to appear in psychology is minimum 45% in 10+2

Embryologist work fields  include Fertility, Medical Procedure, Research, Consultation. 

Psychologist work in Rehabilitation centers, NGO's, Hospital's , Personal Clinics, Corporate Organizations. They pursue as school Counsellor, Career counsellor, psychologist etc.

Hope it helps.