TTC Questions after MC

I had a miscarriage around 4-6 weeks that started on 12/21/18. By 12/28/18 my levels were back to normal. HCG was 0. My doctor said they usually recommend waiting a few months until TTC again but that it wouldn’t hurt anything if my husband and I started right away, as long as we’re we’re ready to.

Right now we’re not trying completely(just not preventing) but we will be 100% after I get my period. But I’m just wondering what is a good ovulation test brand because I feel like my ovulation will be out of whack after what’s happened.

I’ve never taken ovulation tests before so it’s all new to me. I have an almost 2 year old daughter that we got pregnant with right away and then with my miscarriage we had been trying for only two months when I got pregnant.

Also, do I go off the app and try to take the tests or do I test every day that I’m not on my period? Any advice is helpful! And please don’t judge my husband and I for trying so soon, we just feel like we can’t wait and that even after time, we won’t feel any better about what’s happened.