Background: The shifting reproductive age of women is reflected in European populations. Pregnancy in women older than 35 years is considered high-risk and can be an additional source of stress. The aim of this study was to assess the perceived stress of women experiencing late motherhood and the coping strategies used. Methods: The study was conducted in Poland by means of a diagnostic survey, using the COPE (Coping Orientation to Problems Experienced) Inventory, the Perceived Stress Scale (PSS), the Berlin Social Support Scales (BSSS), and a self-administered questionnaire. The study included 310 women who gave birth to their first child after the age of 35 and 313 respondents in a control group who gave birth before this age. Results: Based on the results, there were no statistically significant differences in feelings of stress among women who gave birth to their first child after the age of 35 (M = 18.33) compared to the control group (M = 18.14). However, statistically significant differences were observed regarding stress coping strategies. Conclusions: Women giving birth after the age of 35 were more likely to use strategies including active coping, planning, positive reformulation, acceptance, turning to religion, and seeking instrumental support.