Positive OPK? When to have sex?

Jessica
Hey everyone. I got off birth control 4 months ago and got (I think) positive OPKs on cycle day 17 with a 28 day cycle for the first two months. Then last month I stopped trying the OPKs after cycle day 19 (they were all negative) and ended up having a 38 day cycle. Now I'm on cycle day 17...does this look positive to you? My husband and I had sex on cycle day 11, 14, and 16 (yesterday). Should we have sex again today or wait until tomorrow? Thank you, crossing my fingers that this month will be our month!!