Hi . I have a 26 day cycle and glow and a few other apps I have said I should ovulate on cycle day 13 . then I checked another app and the internet and it said I will ovulate on cycle day 14 possibly cycle day 15 .I thought it would be cycle day 12 but now I'm not sure. I can't go get opk right now my car is in the shop so I'm trying to figure out what day I will ovulate so I can have sex with my husband, he's on board cuz he's wants a baby too just as bad. I got my period Thursday February 8th it only last about 3-4 days. should we have sex leading up to the days I think I ovulate and on the days I think I ovulate and hope I have it down to one of those days I do ovulate or would one of those days be the day I ovulate.?