You asked

Do I need genetic counselling and what are the benefits of it?

The majority of babies born are absolutely healthy. About one to two per cent are born with birth defects. But your obstetrician may refer you to a genetic counsellor if either you, or your partner, have any risk factors, such as a family history of genetic disease. They may also recommend CVS or amniotic testing if there are suspected genetic issues.
It’s a good idea to talk to a genetic counsellor before having either a CVS or amniocentesis. This is the time to discuss personal and family medical histories, your current pregnancy, and the risks and benefits of diagnostic testing. This is also a good opportunity to discuss what options are available and what you will do if the tests discover abnormalities. Your genetic counsellor will continue to be a valuable resource, if the results do come up positive for abnormalities.
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