OB US can detect up to 70% of significant abnormalities. Guidelines borrowed from a top practice in Columbia.
9-10 weeks: Dating transvaginal US
12 weeks: Transvaginal ultrasound for nuchal thickening. 1.8 mm or less = decreased risk. 2.5-3 no decreased risk. 3+ increased risk.
20 weeks: Transabdominal morphology scan.
Prepregnancy supplementation recommended for difficulty conceiving:
Folic Acid: 1600 mcg daily
Vitamin D: 2000 IU daily
Omega 3 fish oil: 4 grams daily or DHA/EPA 1200-1500 mg dailiy
Aspirin: 81 mg daily