OBJECTIVES: Women of childbearing age with a diagnosis of breast cancer often want to conceive a child after treatment. Some reports found that pregnancy does not increase the risk of cancer recurrence after successful treatment. These reports and positive changes in the survival rates of breast cancer patients can impact the decisions of patients and physicians. The goal of this study was to estimate the number of women who survived breast cancer and subsequently became pregnant and to determine the time between the cancer diagnosis and pregnancy in the time periods between 2000-2002 and 2010-2012, respectively. METHODS: This retrospective study analysed longitudinal routine care data collected by gynaecologists in Germany (IMS® Disease Analyzer). Data from women aged 20-45 with a pregnancy within 10 years after the first breast cancer diagnosis from 102 gynaecological practices in Germany (Disease Analyzer database; 01/1992 to 12/2012) were analysed. RESULTS: In the time period 2000-2002, 65 (projected to national level: 4615) women became pregnant after a breast cancer diagnosis; this number increased to 114 (projected to national level: 8094) between 2010-2012. The mean age did not significantly change between 2000-2002 and 2010-2012 (33.8 (SD: 6.0) and 34.2 years (SD: 6.1)). The time between the first breast cancer diagnosis and pregnancy identification was 896 days (SD: 690) in 2000-2012 and 552 days (SD: 696) in 2010-2012 (p<0.01). CONCLUSIONS: This retrospective analysis showed that the number of pregnancies following breast cancer diagnosis has significantly increased in the last 10 years. More over, the time to pregnancy has become significantly shorter. This is indicative of the positive and hopeful developments for young women affected by breast cancer. Further studies on this important research topic are necessary.