First round, ovulation test negative

I wouldn't worry too much yet. Just keep testing calmly, and if you don't find your ovulation this cycle, you can start a bit earlier the next day. After stopping the pill, it can take a little while for everything to become regular again.

Oh my goodness, you've only been trying for less than a month...!
If you're already feeling anxious, it's going to get even harder for you—it takes an average of a year to get pregnant!
Give your body a chance to just try the good old-fashioned way without jumping into those awful tests right away.

Jana1 as Anne says, indeed just keep testing. The pill is really messing with you and your cycle can be all over the place without it! It takes a little while for your body to take over again I did it too so I knew exactly what to expect when! Hope it happens quickly for you

Your body has to do it on its own now, so your ovulation could definitely be later, or you might have missed it because you started on day 13. So keep testing for a bit longer.

I’m also for letting nature take its course without all those ovulation tests. In your case, it’s a bit different though. But yeah, that’s not clear from your post. And yes, I’m all for those kinds of responses. A different perspective can be helpful!

Maybe you started testing too late. No idea if you’ve just stopped the pill or something, but that can mess up your cycle quite a bit.

I’d also give your body about 3-6 months to let your hormones kick back in on their own. That way, you can figure out when your ovulation is roughly supposed to be.
I had a fairly normal cycle length only after 8 or 9 months of (continuing) the pill. At first it was always 23-26 days, and now after my first child it’s 26-32 days.
I understand that ovulation tests are handy for planning, but make sure you read up properly on how to use them. There are differences in test sensitivity, the time of day you test, and how much fluid you drink—all of which have an influence. And it really only becomes clear after about 2 or 3 months when your ovulation actually is after a positive or rising test. You can also start tracking your temperature for that, but that’s completely precise.
Good luck!

@koekiemonster being nice doesn't cost anything, you know

I totally get Koekiemonster's reaction. It's just that the way it was phrased was a bit harsh. If you're already worried about your ovulation, it might get tough, but on the other hand, I completely understand that once you've made the decision, you don't want to miss the chance, especially when timing is important. I only had a 10-day LH window (starting on day 10 of my cycle), so your test could still be a big positive in the next 2 days. If it's shorter than that, maybe your body isn't quite regular yet. Or maybe the tests aren't sensitive enough for you. Temperature tracking gave me a lot of insight too, especially confirming that the tests were working. But I found that really hassle. I got pregnant pretty quickly after 5 months of trying, but my situation was very different. I gave birth in April at 26 weeks (stillbirth) and got pregnant again in November. So hormonally, it was very different. That first pregnancy was the second round after the pill, so getting pregnant quickly is definitely possible! Good luck!!