Advice/solidarity: TTC #2

Today is CD 30 and my last two cycles since IUD removal were 28 days. I’ve taken a test the last few days and all are negative (even the first response which tells you 6 days before period), and I don’t have signs of AF starting. I guess the most likely scenario is that my period is starting in a day or two, like 4 days late? Getting so frustrated, I’m only 31, all my Modern fertility results were normal, and it only took one try for our 1st. What else should I do? Maybe try Proov tests to confirm I’m actually ovulating?