I used this app thinking it wouldn't really work

I used this app thinking it wouldn't really work. I didn't tell my boyfriend as we didn't want it to be scheduled sex. So I used the app and not told him. We had sex most days through out my fertile window and the day I ovulated. I honestly didn't think it would work as I think everyones body's are different so surely when you monitor your periods you won't always ovulate when the app says you will. Anyway I found out I am pregnant today with baby number 2 and I am over the moon! Thankyou so much to this app :) I would highly reccomemd using it if trying to conceive and I would also reccomemd using it with your partners not knowing (only if you both know you want to conceive though) as it sometime spoils the moment if he knows your ovulating and your only trying it on with him because of this 🙈