'm not aware of anything in those products that would increase the risk of birth defects. Most things you use topically are absorbed far less into the mother's bloodstream than products taken orally or injected. So the amount of a topically applied product that gets to the fetus would be minimal.

If you choose to use one of these products, try to minimize your exposure by using it in a well-ventilated area and limiting the amount of time it stays on your skin.
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No. Your just going to have wax or shave.
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Yes, it probably is safe…and you did not waste your time with the previous treatments. The issue is, why risk it? You can continue your treatments after you have delivered your baby with no loss of results.
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http://www.HairRemovalForum.com