Chances of conceiving:

So my husband and I unfortunately only got the chance to BD once during my fertile window this month. Thankfully I got a positive opk on the night of August 3rd and we BD'd that night. My question is, because we likely ovulated on the 4th (and my bbt chart confirmed this), but we weren't able to BD that day, is there still a good chance I conceived? Just because we only got one opportunity I feel like it might not give us the best chances :(