100+ Pregnancy & Fertility Calculators
Science-backed tools to guide you through every stage
Pregnancy & Due Date Tools
Pregnancy Due Date Calculator
Calculate your estimated due date based on your last menstrual period
Reverse Due Date Calculator
Work backwards from your due date to find conception date
Conception Date Calculator
Determine when conception likely occurred
Femur Length to Gestational Age Calculator
Calculate Femur Length to Gestational Age Calculator
Gestational Age Calculator
Calculate how far along you are in your pregnancy
HCG Gestational Age
Estimate gestational age from HCG levels
CRL Calculator
Crown-rump length to gestational age calculator
Mean Sac Diameter
Calculate gestational age from sac measurements
Fundal Height Calculator
Check if fundal height matches gestational age
Chance of Twins Calculator
Specialized calculator for twin pregnancies
Fertility & Ovulation Tools
Implantation Calculator
Predict when implantation may occur
Implantation Bleeding
Identify potential implantation bleeding timing
Luteal Phase Length
Calculate your luteal phase duration
BBT Time Adjustment
Adjust basal body temperature for different wake times
Cervical Mucus Fertile Window
Track fertility based on cervical mucus
Fertility by Age
Understand fertility rates at your age
Next Period Calculator
Predict your next menstrual period
Late Period Probability
Calculate likelihood of pregnancy based on late period
IVF & IUI Tools
IVF Due Date Calculator
Calculate due date for IVF pregnancies
IUI Due Date
Estimate due date after IUI procedure
IVF Success Rate by Age
Understand IVF success probability by age
Embryo Grade Success
Success rates based on embryo grading
IUI Success Rate
Calculate IUI success probability
HCG Doubling (Twins/Triplets)
HCG patterns for multiple pregnancies
Early Pregnancy & Hormone Tools
HCG Doubling Time
Track if HCG levels are rising appropriately
Progesterone Level Interpreter
Understand what your progesterone levels mean
Pregnancy Test Accuracy
When to test for accurate results
Morning After Pill Effectiveness
Effectiveness based on timing
Risk Assessment Tools
Miscarriage Risk Calculator
Assess miscarriage risk by gestational age
Miscarriage Risk After Heartbeat
Risk assessment after heartbeat detected
Subchorionic Hematoma Risk
Understand SCH implications
Stillbirth Risk
Risk factors and assessment
Bishop Score
Cervical readiness for labor induction
Other Tools
Chinese Gender Predictor
Traditional gender prediction method
VBAC Calculator
Vaginal birth after cesarean success rate
Get Pregnant After Depo Shot
Fertility timeline after Depo-Provera
Get Pregnant After Implant Removal
Fertility after implant removal
Why Choose Our Calculators?
Accurate & Research-Backed
All calculators use medical reference charts and peer-reviewed research
Fast & Easy to Use
Get instant results with simple, intuitive interfaces
Perfect for TTC & Pregnancy
Whether trying to conceive, pregnant, or planning IVF - we've got you covered
Instant Results
Get immediate, accurate calculations without any waiting time
Track Your Journey
Monitor your pregnancy timeline and fertility windows with precision
Mobile Friendly
Access all calculators on any device - desktop, tablet, or smartphone
What Our Users Say
"The HCG doubling calculator gave me so much peace of mind during early pregnancy. Highly recommend!"
First-time mom
"As someone going through IVF, these calculators have been invaluable. The IVF due date calculator is spot on!"
IVF journey
"The ovulation and implantation calculators helped us conceive after 8 months of trying. Thank you!"
TTC success story