It could be the caffeine, which can cause premature ventricular contractions (PVC). It's a good idea to cut back on the caffeine during pregnancy anyway, but do it slowly as sudden withdrawal can cause headaches. Smoking cigarettes can contribute to PVCs too.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.