I have had a more chronic problem with mild to moderate depression and moderate to severe anxiety. The only way I've been able to control this has been through use of Zoloft.
I am on a higher dose at 200mg a day. I've taken it (25-50mg at first) since my daughter was a baby, and she's five now. I continued this dose throughout my recent pregnancy. My doctors said to definitely continue taking it. They weren't worried about it at all.
My son is 5.5 months old now, I'm not a nervous wreck, and he's a bright, happy baby. He does have GERD (gastroesophageal reflux disease/acid reflux), but this is common in my family. As I'm the only one who has taken Zoloft while pregnant, I'm pretty sure the GERD wasn't cause by this medication.
My daughter is autistic. I didn't start Zoloft until she was a couple months old. While I was breastfeeding, I again don't believe Zoloft caused this because this is another thing in my family. My brother has Asperger Syndrome, and I KNOW my mother didn't have Zoloft back then (or anything else, for that matter).
Like the doctors say, if it's something that you really need in order to function, don't stop taking it. Let me tell you, I had some MAJOR mood issues with the first pregnancy. This time around, these issues were less of a, well, issue! ;-) Seriously, though, I was able to handle the hormonal shifts much better.
Remember, Zoloft/sertraline is basically a seratonin supplement. (I'm not a pharm., but this is as I understand it.) In someone like me, there isn't enough seratonin. When it gets out of balance, you experience these kinds of symptoms. It's like a diabetic who needs insulin. If you need it, you need it.
I think people would be well advised to remember that in days gone by, people with these kinds of disorders/syndromes didn't have these resources, and they'd end up in bad ways--unless their families had big money. It's sad that people today look at mental/emotional disorders as something different than a metabolic or cardiac condition as far as the need to treat appropriately.
If you look into homeopathic solutions, be sure to clear them with your doctor first. "All natural" doesn't mean "all safe." Poison Ivy is "all natural," if you catch my meaning. I'm not against homeopathic support, but you need to be careful. Also, don't mix herbal supplements with prescription meds without first making sure it's safe. St. John's Wort is not safe with most antidepressants, for example.
Again, I'm not against "natural remedies." I just choose to maintain a healthy respect for what's safe and what isn't.
Good luck. I hope things work out just fine! :-)