Ok so I had sex on August 28,2018 and he came inside . It’s too early to take a pregnancy test but I can’t wait ! I went to the store today to buy ovulation test (non digital, first response) because my last period was august 18,2018 and the cycle is 31 days. It seems as if every calculator for ovulation is different on here! It says today is my highest day but when I took a ovulation test it says no lh. I’m so confused