<s>[INST] Scan results, Uterus bulky with homogeneous myometrialechotenture no focal lesion noted, single regular intrauteine gessational sac with uniform decidual reaction noted yolk sac visualised and foetal pole with Google cardiac activity noted. CRL: 29mm 9w5d, LMP 9w1d [/INST] Hi, Uniform decidual reaction with gestational sac is normal physiologic variant for the developing fetus. I would suggest regular follow up with your obstetrician-gynecologist for medications pertaining to the fetal growth and well being. Hope I have answered your query. Let me know if I can assist you further. </s>