4 Negative Test

Hi ! I’ve been at my breaking point lately , me and my boyfriend have been having unprotected sex and hissperm has been going inside at least 4+ that I can count . I haven’t bothered taking plan b anymore since we wouldn’t mind starting a family soon . Within the last 3 months I’ve taken test right before my period should begin thinking It finally worked so far all the test have came back negative and again Sperm has been inside lol I’ll usually wait 1-2 weeks after sex to let it “ grow “ but so far it’s been negative should I be considered maybe it has to do with me ?