At around 5 weeks 2 days of pregnancy, a beta-hCG level of about 900 can still fall within a normal early range, as levels vary widely and the key factor is that they rise appropriately (roughly doubling every 48?72 hours). Since you conceived after ovulation induction with Clomiphene and an Human chorionic gonadotropin, and are taking Dubagest 200, your doctor will likely monitor serial beta-hCG tests and do an early ultrasound to confirm normal progression. Continue your medicines as prescribed and follow up regularly, as a single value alone is not enough to judge viability.