| Value | Category | Cases | |
|---|---|---|---|
| 1 | during her period | 1 | 
                                    
                                    0.5%
                                 | 
| 2 | after period ended | 30 | 
                                    
                                    14.2%
                                 | 
| 3 | middle of the cycle | 45 | 
                                    
                                    21.2%
                                 | 
| 4 | before period begins | 0 | 
                                    
                                    0%
                                 | 
| 5 | at any time | 17 | 
                                    
                                    8%
                                 | 
| 6 | other | 0 | 
                                    
                                    0%
                                 | 
| 8 | don't know | 119 | 
                                    
                                    56.1%
                                 |