Guides
17 articles.
- All
- Due dates & conception
- Birthdays & conception
- Cycles & ovulation
- Pregnancy weeks
- Testing & late periods
- IVF
- Guides
- How Conception Works, Step by Step
From ovulation to implantation: what actually happens when a pregnancy begins.
- How Due Dates Are Calculated (Naegele's Rule)
Why due dates are counted from your last period, and how cycle length and ultrasound change the result.
- Signs of Ovulation: How to Tell When You're Ovulating
Cervical mucus, LH tests, temperature and other signs that ovulation is near or has happened.
- The Fertile Window Explained
Why there are only about six days each cycle when pregnancy is possible, and how to find yours.
- How Long Do Sperm and Eggs Survive?
Sperm can survive up to five days; an egg about a day. Here's what that means for timing.
- Implantation: When It Happens and What It Feels Like
Implantation usually happens 6 to 12 days after ovulation. Learn about timing, bleeding and testing.
- When to Take a Pregnancy Test for an Accurate Result
The earliest and most reliable times to test, and what to do with a negative result.
- Trying to Conceive With Irregular Periods
Why irregular cycles make timing harder, and practical ways to find your fertile days.
- Ovulation Predictor Kits: How to Use LH Tests
How LH tests work, when to start testing and how to read the results.
- Basal Body Temperature Charting for Beginners
How to chart your temperature to confirm ovulation, and what the pattern means.
- Cervical Mucus Changes Through the Cycle
What your cervical mucus says about your fertility at each stage of the cycle.
- Ultrasound Dating vs Last Period Dating
Why your due date might change after a scan, and which date to trust.
- Why Babies Rarely Arrive on Their Due Date
Only a small share of babies are born on their due date. Here's why, and what the normal range is.
- IVF Due Dates Explained
How due dates are calculated after fresh and frozen embryo transfers.
- Cycle Tracking for Beginners
How to track your cycle, what to record and how to use it to find your fertile days.
- When to See a Doctor About Trying to Conceive
Guidance on how long to try before getting a fertility evaluation, and reasons to go sooner.
- Conception Timing Myths, Busted
Common beliefs about timing sex, positions and choosing a baby's sex, compared with the evidence.