Reproductive Cycle Crossword Puzzle

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Across
  1. 2. Protective layer surrounding developing egg (8 letters)
  2. 3. Thickening of uterine lining (11 letters)
  3. 6. Monthly shedding of uterine lining (12 letters)
  4. 7. Process of egg release from ovary (9 letters)
Down
  1. 1. Monthly reproductive cycle length (20 letters)
  2. 4. Female reproductive hormone (8 letters)
  3. 5. Hormone stimulating egg release (11 letters)