HI thanks for posting your query on healthcare magic. I have carefully gone through your query,and i would like to tell you that COPPER-T is available i various types depending on the content of copper on the SURFACE area present. this copper is subsequently released over a time to cause the clinical contraceptive effect over an extended time. the life span thus varies accordingly. for example gyneplus 380 -5years,and paragard -10 years. a device with life span of years is preferred as any side effects,complications or treatment failures can be reported early.you can participate in sexual activity ,anytime after the cu-t is inserted once you feel comfortable .it starts to work with immediate effect. an ultrasound confirmation of the position of copper -t is needed. frequently check for the threads of the device. prevent any genital tract infections during this period,. have a clinical review on annual basis. consult an expert gynecologist for further query. thank you. take care.