Home / Calculators / Early pregnancy

Fertility and IVF calculators

Every calculator in one place, free and with no sign-up. Results show instantly — we don't hide them behind a form. Each one explains what the number means, where the reference ranges come from, and what it cannot tell you.

How these differ from other calculators

Common questions

Second opinion

Bring your numbers to someone who can see the rest

A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.

Free first consultation. No obligation to start treatment, and it doesn't affect your care at your current clinic.

These tools provide general information and are not a diagnosis or a substitute for assessment by a qualified clinician. Reference ranges and sources are stated on each calculator. Predictive estimates describe groups of people and cannot predict an individual outcome.

Early pregnancy

After a positive test. Dating, hCG interpretation, and what to expect when.

The early weeks after a positive test

Two things dominate this period: hCG and dating. hCG is useful early and stops being useful above roughly 6,000, when ultrasound answers the question better. Dating after IVF is unusually precise, because conception is a known date rather than an estimate.

One caution that applies to every hCG calculator including ours. Around 21% of ectopic pregnancies rise like a healthy intrauterine pregnancy and about 8% fall like a miscarriage. No number rules ectopic in or out — only ultrasound establishes location.

Second opinion

Bring your numbers to someone who can see the rest

A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.

Free first consultation. No obligation to start treatment, and it doesn't affect your care at your current clinic.

‹ Back

Enter your values
Result

Where this sits

Expected Borderline Below expected Worth discussing

Or ask someone
  • A free first consultation covers this properly, with your actual results rather than an estimate
  • Both partners assessed together — male factor is involved in roughly half of cases
Second opinion

Bring your numbers to someone who can see the rest

A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.

Free first consultation. No obligation to start treatment, and it doesn't affect your care at your current clinic.

Get a second opinion › Message us on WhatsApp

Read next

What these tools measure, explained in full.

Comparing centres? See every ART-registered fertility clinic in Bangalore, scored on the same five signals.