every other day

Hailee
So we've decided to dtd every other day in my fertile window. My two most likely days to conceive according to glow are the 7th and 8th. With every other day in my fertile window, that has us skipping the 7th and doing it the 8th... I have drill the 7th so I leave & get back the 8th. Is there still a high chance of pregnancy if we don't do it the 7th.?