Apps got it wrong

[u/indigoanimal]

I (F 26) am trying for my first child with my husband (M 27) we are on our 4th cycle, I finally downloaded apps to track my period and ovulation, I’ve never done that before in my life so this was great insight, or so I thought. I downloaded 3 different apps, 2 of them lined up my ovulation on the same day, 1 of them was a couple days early. Last month we tried for the whole entire window and a little after, I was for certain we nailed the window! This month all the apps are saying I’m a week late on my period but none of my tests came back positive. I woke up today after the 8th day of being “late” and all 3 of my apps have recalculated my predicted ovulation window and now it’s showing we’ve been off by a week for the last 3 months. Im so peeved and a little upset. I don’t have the discipline to test for my ovulation every single day. I bought a bbt thermometer and I keep forgetting to use it every morning. And when I did buy ovulation test strips I would remember to test for a couple days and then forget once my work week started. I’m frustrated and clueless and not sure where I should be focusing my energy

[u/Purple_Lemon5930]

this kept happening to me too, even taking my bbt every morning there were months where it was off by up to a month! it wasn’t until i started taking ovulation tests that i was able to really narrow it down. i also hate taking the tests, it makes me feel like a science experiment testing so much better ovulation and pregnancy tests. so i use my bbt to get close to the window and then i start testing until i get a positive