No one can really answer the risk question. But clearly stated celexa is associated with birth defects. Knowing that it is up to you to determine if with the good chance of a relapse of depression without meds (it is thought that the birth defect issue is some what dose related), and the use of celexa being inadvisable whether trying for a child is advisable. Good luck whatever your decision is.
Are there any SSRI's that can be taken safely during pregnancy? As for citalopram, you mentioned that potential defects are dose related. Is 10mg per day not a very low dose? What are the risks / possible defects?
Latest research indicates that all SSRI's marginally, but noticeably increase birth defects especially when taken in 1st trim rester. The defect was mostly cardiac. 10mg is 1/4 of the usual dose so it quite low. This is a discussion you should have with with your ob/gyn and psychiatrist. For a little more depth see; http://pn.psychiatryonline.org/content/42/14/1.2.full