Precaution During Pregnancy in First 3 Months? Extra caution must be used during the first trimester or the first three months of pregnancy to safeguard the health and welfare of the mother and the developing child. Consider the following crucial safety measures during this vital phase: Being pregnant. Medical Interventions: When you think you might be pregnant, schedule a visit with a midwife or obstetrician. As an alternative, you can find out if you're pregnant using a home pregnancy test.
