When to do a pregnancy test?

Paige • 23 | UK | Mother | Wife ♥️
Hi everyone, so I got my positive OPK on Tuesday, so we BD Tuesday night and Wednesday night, my husband went away this morning until Saturday so won't be able to BD again until then. Do you think that will be enough? We normally BD every other day anyway.. Also, another question I wanted to ask was when do I take a pregnancy test? If AF doesn't show? This is our first month actively trying. Thanks!