Confused

Hello. So... im in my fertile window, been doing ovulation tests. so far, all been negative !! Me and my partner did the deed several times over the weekend and I wont see him now until next weekend( not fertile week) im starting to think maybe I wont ovulate this month. Is this possible? And if I do ovulate but during the week will I still have a chance that this weekend session may get me pregnant. Sorry if this is hard to understand