###Human: Am I at risk of STD if condom slips halfway? ###Assistant: Hello. I went through your post. Slipping of the condom makes it an unprotected sexual intercourse and there is a small 1 % risk of getting STD although non-ejaculation makes it a lesser risk. You can test after two weeks for syphils and HIV by doing FTA-ABS (fluorescent treponemal antibody absorption) and CMIA for HIV after two weeks to be on the safer side. However, as the risk is very minute, there is no need to worry.