What are the chances of getting pregant on the day that you ovulated?

i was just wondering cuz i ovulated on the 04/26 and me and my husband had that nite then i took another ovulating test and it said i was still ovulating on 04/27 and we had that nite thn i couple days ago i took a test and it came out negative was it to early or wht? i am just worry if tho we had on the days i ovulated i feel like i am not going to end up pregnant. so i was just wondering wht are the chances of me getting pregnant on the day tht i ovulated and well i most likely get BFP? and when should i test? thks!