Asking for an answer

Okay so I am on the pill and take it perfectly, but I don’t trust it completely and I do not want a baby right now so we use condoms also. My boyfriend pulls out with the condom on and wears it the whole time. Anyways, I check it with water after we are done. No water leaked out. So could sperm still have got through the condom? Please don’t say they are only 98% effective cus I know that. So could sperm still get through the condom even though water can’t?