Unlike natural conception where the start date is based on the Last Menstrual Period (LMP), IVF pregnancies have a precisely known conception event: the embryo transfer. Calculators use the transfer date and the embryo's age (typically 3 or 5 days) to determine the estimated conception date, and then add the standard gestational period (around 266 days from conception, or 40 weeks from LMP equivalent) to estimate the due date. This provides a more precise timeline tailored to the IVF process.

This calculator uses standard formulas based on your transfer date and embryo age, providing a reliable estimate. However, only about 5% of babies are born on their exact due date. Factors like individual development and potential complications can influence the actual delivery date. Early pregnancy ultrasounds, measuring the fetus's crown-rump length (CRL), are considered the most accurate method for confirming gestational age and refining the due date provided by your doctor.

The IVF process duration varies significantly. A single IVF cycle typically spans 4 to 6 weeks from the start of ovarian stimulation until the embryo transfer. However, this doesn't include initial consultations, testing, potential delays, or the need for multiple cycles. Factors like whether a fresh or frozen transfer is used, the need for genetic testing (PGT), and individual response to treatment influence the overall timeline. Discussing **how long does IVF take** in your specific situation with your fertility specialist is crucial for realistic expectations.

Understanding **how much does IVF work** involves looking at success rates, which vary based on age, cause of infertility, clinic expertise, and whether live birth or pregnancy is the measured outcome. Success rates decline with maternal age. Regarding **how much does IVF cost**, it's a significant investment. Costs vary widely by location and clinic, often exceeding $15,000-$25,000 USD per cycle, excluding medications, PGT, or multiple attempts. Insurance coverage also varies greatly. It's vital to research clinic-specific success rates and get detailed cost breakdowns.