Would my body let me know if it wasnt right? Would I have bleeding etc? I sound so paranoid haha!!

I have spoken to the instructor who said no worries its fine to do zumba, but just do the low impact options, no jumping, just step it out sort of thing. So I keep that in mind, but get so carried away next thing I notice I'm probably putting in too much effort iykwim. I drink plenty of water throughout as well. As for the heart rate, I try to keep it down (almost impossible!) but I did read somewhere online the other day that the getting your heart rate above 140 thing hasnt been proven????

I love zumba I am just such a worry wort, & we have wanted this baby for ages so I would hate to do anything that could be affecting it.