Hey everyone! So I've been trying to conceive since my miscarriage in November. This is my first month using a ovulation kit bc I became pregnant w my son so easily and I was getting very upset and frustrated. So it seems I ovulated 5 days before glow told me I was. Now glow is saying my period is Tuesday which would make my cycle 23 days but my DPO 14. Now that's not right because my cycle is 26-27 days.

My question is do you start testing based on days before period OR DPO?