First stage randomization: HIVST v. SOC. The main study will be a cluster-randomised trial in up to 5 high HIV prevalence districts (provisionally Blantyre, Machinga, Mwanza, Neno and Thyolo) that already have community-based reproductive health services provided by PSI under funding provided by the German Technical Cooperation Agency (GTZ). This programme supports volunteers to socially-market reproductive and child health products in villages, with products stored and managed by collaborating primary care clinics. The unit of randomisation is the Primary Care + ART Clinic and surrounding catchment area villages to clinic. CBDAs in the HIVST Arm villages will be trained to provide HIVST services as well as reproductive health services. CBDAs in the SOC Arm villages will remain with reproductive health services only. Two separate units of evaluation will be pre-defined before randomisation: one or two evaluation villages that will have baseline-final household surveys, and a wider catchment area including all villages with CBDA activities.