Hi Michelle,
I'm currently cooking a Prozac baby. Started on 20 mg/day at 15 weeks. My understanding with Prozac is that there are no long term effects, but my son has a higher than typical risk of some breathing, feeding, irratibility issues at birth. I'm not thrilled with this, but I've got such a long history of severe PPD that Psychosis is a bigger risk for baby, so I continue on the meds. Both my doctor and the counselors at MotheRisk recommended staying on the Prozac.
I don't know the specifics of Paxil and side effects post partum, but I do know that the SSRIs are not considered to be a risk factor for birth defects.
www.motherisk.org can get you specific research on Paxil. And if you call the counselors, they'll be wonderful and give you all the time you need to get your questions answered.
I'm sorry that you're dealing with HG and depression, but there are many babies around here that have grown strong despite both. I am especially sorry about the little one you lost. Pregnancy after loss really leaves us with more than the average worries and concerns.
Love,
Suzanne