Background Herbal medicines are widely used in the world especially in developing countries. Pregnant women use herbal products to treat pregnancy related illnesses due to prior experience of herbal medicine use and easy accessibility of the products with less cost. However, herbal products could affect fetal growth and contribute to maternal and fetal morbidity and mortality. Herbal drug use during pregnancy is not well studied in Ethiopia specifically in northeast Ethiopia. Methods A cross-sectional survey was conducted among 254 pregnant women on antenatal care follow-up at Dessie referral hospital. Semi-structured questionnaires were used for data collection. After collection, data were coded, entered and analyzed by SPSS version 20. Chi squared test and Logistic regression were used to evaluate the association between dependent and independent variables. Result Among the total of 254 respondents, 130 (51.2%) used herbal drugs during current pregnancy. The most commonly mentioned reason for herbal drug use was “herbal medicines are accessible without prescription” (43.1%). The herbal medicines used were Ginger (Zingiber officinale Roscoe) (43.8%), followed by Garlic (Allium sativum L.) (23.8%), Damakese (Ocimum lamiifolium Hochst. ex Benth.) (21.5%) and Tena-adam (Ruta chalepensis L.) (10.8%). The indications for herbal drug use were nausea/vomiting (43.8%), headache (30.8%) and common cold (25.4%). The most commonly mentioned sources of information on herbal medicine were families and friends (80.0%) followed by neighbors (12.3%), and the most commonly cited sources of herbal products were market (67.7%) and self-preparation (20.0%). Being illiterate or having only primary school education (Adjusted Odds Ratio [AOR]: 3.717, 95% CI: 0.992-13.928), having secondary school education background (AOR: 3.645, 95% CI: 1.394-9.534), and poor monthly income (AOR: 7.234, 95% CI: 2.192-23.877) were the variables that showed significant association with herbal drug use during current pregnancy. Conclusion This study showed that half of the sampled pregnant women used herbal medicine during current pregnancy, and education status and monthly income level of the women were associated with herbal drug use.