Ovulation question!

I did two home kit ovulation tests yesterday-one around noon and another around 9pm. Both were negative. My husband and I had unprotected sex last night, as we are trying to conceive. I took another ovulation test this morning and it tested positive. Is there a good possibility of conceiving? My husband left town this morning for work and won't be back until after my ovulation window is over. What do you guys think???!