So I think I may be ovulating late? It's CD 30 for me.. I just got a positive opk. I haven't checked…

So I think I may be ovulating late? It's CD 30 for me.. I just got a positive opk. I haven't checked when I ovulated until now. Should we just bd or wait... It may be a bad egg and I don't want to risk another miscarriage.. I don't know what to do..