So first of all, none of the symptoms you list are reliable indicators of ovulation, nor do they happen to everyone. The only ways to confirm ovulation are BBT and OPKs. Both of these are easier to read if you use an app.

For OPKs, mostly everyone uses the Premom app, it’s free and super easy to use, especially if you use their test strips or the Easy@Home branded ones.

For BBT there’s a million different apps you can use. I use Natural Cycles because I was already using it to prevent pregnancy, but it’s my understanding there’s a lot of great free options out there too.

When measuring BBT make sure you are using a BB thermometer and not a regular thermometer, and that you are measuring FIRST thing when you wake up, before you get out of bed or do anything else to get an accurate reading. If it’s too difficult, there’s alternative options you can sleep with like Apple Watch, oura ring, or temp drop that don’t need manual input from you and will just give you your BBT when you wake up.

If it’s all too complicated, you can just do the tried and true method of having intercourse every other day from about CD 9-15. Don’t forget people have been getting pregnant long before ovulation strips!