(Discussion should include yet not be limited to the below)
If lactating: SSRIs and some other antidepressants are considered a reasonable treatment option during breastfeeding. The benefits of breastfeeding while taking antidepressants generally outweigh the risks. The amount of medication that goes into the breast milk is relatively small and there is no evidence of significant short or long term consequences to babies who are exposed to SSRIs through breast milk.
See Antidepressant Treatment Algorithm for guidelines on prescribing medications.