Poison
I am an artificial sweetener researcher/activist...I don't know about stevia and pregnancy. But in Europe it is well Known that Splenda can cause a woman to miscarry. IT has chlorine in it!!!! and the artificial sweetener lobby keeps this information from us, the same way they try to make us believe that stevia is less safe. Why doesn't America know about this? When Aspartame/NutraSweet was discovered it was NOT approved by the FDA physician because it didn't survive human trials and people were getting too sick...but because it was a goldmine, Donald Rumsfeld fired the FDA physician and hired his own physician to approve it!...
Again I don't know about Stevia and pregnancy since it is an herb...
But stay away from artificial sweeteners!
If you've had Splenda, don't worry, just don't have it again!
check out the source below
"The Center for Science in the Public Interest (CSPI) has warned that aspartame, the artificial sugar substitute in most diet drinks, may cause cancer as reported in a three-year Italian study that found links to lymphomas and leukemias . But the CSPI communication goes on to advocate use of another doubtful sweetener – sucralose – to get off aspartame. Sucralose, also sold under the Splenda brand name, has its own problems of toxicity and is by no means an innocuous replacement for aspartame.
Although the CSPI has – with a delay of several years – come out now with a warning against the use of aspartame, Betty Martini charges that its executive director, Michael Jacobson, should have had the courage to do so long ago. She says the information was available since the time of the aspartame approval through political pressure called in by Donald Rumsfeld, former CEO of aspartame manufacturer Searle and now defense secretary.
Diet soda, which generally is sweetened with aspartame, has been shown to be linked to an increased incidence of obesity by Sharon P. Fowler, MPH, and colleagues at the University of Texas Health Science Center, San Antonio in a recent study. While Fowler is quick to point out that the link does not prove causation, the facts showed that the more diet drinks a person consumed, the higher was the likelihood of being obese.
The SustainableIsGood Blog wrote “Judging by the domain names Johnson & Johnson and Tate & Lyle own it’s very clear they are concerned about people targeting targeting Splenda itself, or its main ingredient sucralose. The mere fact a major corporation and maker of a product has bought and owns domain names with their product name and the words “poison,” “kills,” and “sucks,” and “victims” is amazing. Under what possible scenario does Johnson & Johnson envision that someone would create the website “victimsofsplenda.com” This domain name and many others seem to go way beyond a company protecting its trademarks or copyright – these domain names imply a very sobering negative fear on the parts of Johnson & Johnson and Tate & Lyle.”
And then concludes with “It’s hard not to wonder – buying a handful of top level domain names to protect a company name or trademark seems reasonable but buying over 200 possibly as high as 300 negative domain names related to a product seems over the top. Is there something these companies know about Splenda that make them feel the need to buy all these domain names before someone else can? Who would ever imagine a website
www.victimsofsplenda.com – honestly? Well apparently someone at Johnson & Johnson did because they now own the domain along with a host of others.”
http://splenda.worldwidewarning.net/
I was afraid to use sugar additives during the pregnancy and wanted to be extra careful. However, I can't wait to go back to diet post preg. 
Although I don't miss the headaches I had when drinking diet.
