Concerned about low hcg levels. lmp dec 5, lh surged dec 18 pm-dec 20 am (prolonged this cycle). first + urine pregnancy test (very faint) jan 3 (approx 14dpo). serum beta hcg levels: 18dpo: 35, 19dpo: 47, 23dpo: 237. doubling, but low. insights?

Talk to your OB Dr.: HCG is produced by the placenta in pregnancy. HCG increases between 25 mIU/mL to 7500 mIU/mL during the first 5 weeks. It differs in each pregnancy. Home pregnancy tests will be positive on the first day of your missed period. A slow rise in HCG may indicate a nonviable pregnancy. Talk to your OB Dr for an transvaginal ultrasound which can detect the gestational sac and baby.