Pregnancy Calculator

Key Features of the Code

1. Input Fields:
   • Due Date
   • Last Period Date
   • Ultrasound Date
   • Conception Date
   • IVF Transfer Date
2. Calculation Logic:
   • The calculator uses the provided date to estimate the due date and pregnancy milestones.
   • If multiple dates are provided, the due date is calculated based on the first valid input.
3. Pregnancy Milestones:
   • First Trimester End: 12 weeks
   • Second Trimester End: 28 weeks
   • Third Trimester Start: 28 weeks
   • Key Milestones: Anatomy Scan (Week 20), Viability Milestone (Week 24), Full-Term Preparation (Week 36)
4. Styling:
   • Gradient background and rounded corners for a modern look.
   • Clear labels and input fields for ease of use.

How to Use the Calculator

1. Enter at least one of the following dates:
   • Due Date
   • Last Period Date
   • Ultrasound Date
   • Conception Date
   • IVF Transfer Date
2. Click the Calculate button.
3. The result will display:
   • Estimated Due Date
   • First Trimester End
   • Second Trimester End
   • Third Trimester Start
   • Key Milestones