Positive opk and ttc please help?

OK so my husband and i are trying to concieve. I had a positive opk the night of the 17th. which was also the night we left for our first trip together. we bd on the 18th 19th 20 21 22.. I know once you get a positive opk you ovulate around 24 to 36 hrs from than. We bd the morning of the 18th when we got to our hotel and later that day and on the other days listred. is there still a chance to concieve this month. it was bad timing since we were leaving on vacation any input thanks. ps now i crmp some and sore is this justme getting ready for a period or what