Could I still get pregnan this month?

Hi, I have had short cycles lately 25-27 days. I usually ovulate day 15 or 16 so we started bd'ing on day 10 and went onto 12,13,15,17. Onday 17 I still didnt see a 100% positive opk. Then on day 19 I got a positive. The problem is today Day 19 my husband had to go away. Is it possible I could still get pregnant?? I am ttc and can't believe it was positive late and on the day my husband left. I heard the sperm can live I am praying this is the case! Any advice would bd great. Thank you