Fertility window

My fertility window is said to be  Tuesday through Sunday. My husband  is away on a trip this weekend so we had sex Tuesday, Wednesday and Thursday before he left. I had CM on Friday. Do you think the sperm is still strong enough to reach the egg? I know they say sperm can live 3-5 days. So is it okay that we did it right before my peak day and not on it, since he wasn't home? Just wondering if my chances are good to conceive.