I just got a barely used Samsung Watch Active from my best friend. It measures my heart rate automatically, but I've noticed over the past couples weeks my heart rate has been unusually high. I'm almost 11 weeks pregnant right now, but according to my research my resting heart rate should only increase up to 90 bpm while pregnant. I don't exercise at all currently but my heart rate has been (most of the time) 110+ and it goes up to 145 bpm occasionally, even 163 bpm today. My friend says the watch was accurate for her, measuring 70-80 bpm consistently. I don't know if this is normal for pregnant women, or even if anyone else in this forum has experienced this?