I am definately thinking of renting one!!!
I guess I was most careful and nervous with my first pregnancy and never would have dared take any chances, but this is my fifth and *darnit* I would love to hear my babe's little racing heartbeat every few days or so!!
I've heard of women undergoing chemo therapy while pregnant. Women in extremely hot climates are also having babies routinely. Tell them not to overheat. And heck, we're all having our babies in the summer. ALL of our body temps are going to go up by the time we're ready to pop LOL.
I think if you sit there all day every day with the doppler on your belly and then there's trouble with the fetus you can begin to worry. But that's not how they're meant to be used. A minute or two here and there has never been proven to cause any problems, at least none that I've heard of.
I understand people's nervousness, but I think dopplers and other technology that helps us during pregnancy and birth is a miracle. But that's just my opinion.
I guess you just have to try to make an informed decision and go with your gut at the same time.
P.S. I LOVE Pugs