OPK Newbie

OK ladies, need some advice/opinions. Just started using OPKs this cycle, have only tested twice so far. No positive yet but I started testing early since it's the first cycle so I wasn't expecting a positive yet. The OPKs I'm using say testing in early evening is best but if you want to test twice, test around noon and then early evening. The evening test is not a problem because I'm home from work by then. I can't test around noon because I'm at work and don't have a way to test there. My question is have any of you had success tracking ovulation only testing once a day? I'm concerned that I'll miss it since I can't test twice a day 😞