I wonder whether there is a window during pregnancy for a Zika infection causing microcephaly. eg, thalidomide caused different defects depending on which day

I wonder whether there is a window during pregnancy for a Zika infection causing microcephaly. eg, thalidomide caused different defects depending on which day of the pregnancy the mother took it -- take it on the Nth day and you get blindness, on the Mth day you get malformed limbs. If it's something like "only a risk during the second trimester", then that 28% chance becomes "100% during second trimester".