Ovulation

Kalyn
I'm new on here and have an ovulation question. My boyfriend and I are trying to conceive, we have been trying and not sure if we are getting ovulation part correct. We have sex at least 3 times in my window but my window changed this month due to me getting put on clomid. The ovulation test today came back positive and not sure how long that is good for? We are both sick and he is staying at another place to prevent my son or I to get his illness. I do have pcos and also taking metformin to help with ovulation, but was my first month with clomid and had my ovulation jump up 3 days from last month. 
Any help would be appriciated.