Hello! I need some help. I am 5 weeks pregnant with our first...and I am 34. About 4 years ago I lost over 100 pounds through exercise and Weight Watchers. I am in maintenance mode. However, I still exercise about an hour a day, 5 days a week. I have noticed in the last week my heart rate (I wear a Polar Heart Rate Monitor) has been getting pretty high for me.
Before I was pregnant, my heart rate would top out about 155-160 during intense cardio. Recently in my cardio classes my heart rate has been consistently hitting the 160s and today during a weight training class it was about 156 for nearly the entire class.
Is this OK? Should I dial it down a bit? Everything I have read said just don't try to advance your fitness in your first trimester.