Table 2 Follicle, CL and P4 measurements

 D2

12.66 ± 0.4

8.84 ± 0.6

0.00006

 D1

13.93 ± 0.6

9.58 ± 0.3

0.00003

 D0

15.64 ± 0.6

11.52 ± 0.4

0.00005

 Pre-ovulatory follicle, mm

15.99 ± 0.3

11,32 ± 0.2

0.00000002

 CL volume on D4, cm³

2.66 ± 1.2

2.3 ± 1

0.03

 CL weight on D4, g

1.06 ± 0.06

0.68 ± 0.08

0.002

 Plasma P4 concentrations on D4, ng/mL

1.17 ± 0.3

0.8 ± 0.1

0.21

 D2

10.73 ± 0.7

7.09 ± 0.3

0.0002

 D1

11.79 ± 0.6

7.73 ± 0.4

0.000001

 D0

13.04 ± 0.5

9.68 ± 0.4

0.00002

 Pre-ovulatory follicle, mm

13.63 ± 0.5

10.09 ± 0.3

0.000005

 CL volume on D7, cm³

2.29 ± 0.2

1.53 ± 0.2

0.03

 CL weight on D7, g

2.83 ± 0.2

1.53 ± 0.2

0.0001

 on D7

3.68 ± 0.2

2.1 ± 0.2

0.008