I had my first workout while pregnant tonight, I'm about 7 weeks. (Most days I've felt too exhausted or queasy to even think about the gym!) I stayed at or below a 140 heart rate and didn't do anything too crazy. During the workout I felt great but after I've had some mild cramping, more than I've had for the past few weeks. I'm guessing this is just from working my muscles but I wanted to know if anyone else noticed this.
Re: Working out while pregnant
I would take it easy after your workout and make sure to drink plenty of water.