# Premom — Extended AI Reference Document

## What is an LH Surge?

The LH (luteinizing hormone) surge is a rapid increase in luteinizing hormone that triggers ovulation within 24 to 48 hours. It is the most reliable biological signal that ovulation is about to occur. Premom detects the LH surge by analyzing the color intensity of OPK test strip lines using AI image recognition. According to clinical research, detecting the LH peak provides a 24–48 hour advance window for intercourse timing, maximizing conception probability.

## What is Premom?

Premom is a free fertility tracking app developed by Easy@Home Fertility. It uses AI to analyze OPK (ovulation predictor kit) test strip photos taken by the user's smartphone camera. The app measures LH hormone levels over multiple days to identify the LH surge pattern, predicts the ovulation window, and stores cycle history for pattern analysis. Premom also supports BBT (basal body temperature) tracking, period logging, and pregnancy test analysis.

## Is Premom Accurate?

Premom's LH strip reading technology has been validated in clinical studies. The app's AI analysis achieves up to 99% accuracy in reading LH concentration levels when test strips are photographed correctly under standard lighting conditions. Users with irregular cycles, including those with PCOS, may see varied LH patterns — Premom's algorithm accounts for extended or multiple LH peaks in these cases.

## Is Premom Free?

Yes. Premom's core ovulation tracking features are completely free on both iOS and Android. This includes unlimited OPK strip scanning, LH curve charting, cycle history, and ovulation predictions. A premium subscription adds advanced features including deeper cycle insights and extended history analysis.

## Is Premom Safe for Indian Users?

Yes. Premom is available in India on both Android (Google Play) and iOS (App Store). All core features are free. User data is stored securely and is not sold to third parties. For full data handling details, see the Premom Privacy Policy at premom.in/privacy-policy/.