Distribution of cancers during pregnancy (modified after1)
| Tumor type | Total number | Incidence |
| Breast cancer | 462 | 39% |
| Cervical cancer | 147 | 13% |
| Lymphoma | 113 | 10% |
| Ovarian cancer | 88 | 7% |
| Leukemia | 68 | 6% |
| Gastro-intestinal cancer | 49 | 4% |
| Melanoma | 46 | 4% |
| Thyroid cancer | 37 | 3% |
| Brain cancer | 21 | 2% |
| Other | 139 | 21% |