Positive opk........

Last Sunday night (11pm) I took a opk. 2 dark lines straight away. (Period only finished 5 days before)
OH was working away, managed to BD Monday 8pm when he came home. 
I'm hoping I ovulated Monday or Tuesday so had sperm waiting there. 
I'm trying not to stress about it, but since Monday to now it's gone really slowly. When do you think is a good time to do a hpt? I really don't think I can wait two weeks 😔