If you had a 3-day period and then tested weakly positive on a pregnancy test, there is a possibility that you could be pregnant. However, it's important to note that the accuracy of pregnancy tests can vary depending on factors such as the sensitivity of the test and the timing of when it was taken.
A weak positive result could indicate an early stage of pregnancy or a low level of hCG (human chorionic gonadotropin), which is the hormone detected by pregnancy tests. It's recommended to wait a few days and take another test or consult with your healthcare provider for further evaluation.
Regarding the well-being of your baby, it is difficult to determine at this stage without additional information or medical examination. It's important to schedule an appointment with your healthcare provider who can perform necessary tests and provide guidance throughout your pregnancy journey.
Remember that every pregnancy is unique, and individual circumstances may vary. It's crucial to seek professional medical advice for accurate information tailored to your specific situation.