I personally wouldn't do it, because I'd be terrified the earring would get caught on clothing or a blanket (think knits) and end up damaging the earlobe. I see 1yr olds with little gold hoop earrings all the time and just want to cringe. If you do them, stick with small studs for safety.
M/C 10/18/10 9w2d...forever loved
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It's a boy!