29 years, 158 cm, 70 kilo, 30 weeks pregnant, primigravida, no relevant past medical history, I am afraid and want to know if my foetus can be born with birth defects or chromosomal anomalies as Down syndrome. My oby/Gyn on routine check says good. Should I calm down. I have no credit cards and if you need to pay money I apologize, please do not reply.