Looking into buyung O tests

Help! We recently miscarried our first pregnancy in October. I am on my second AF since D&C on 11/1. My doctor advised me to wait 2 cycles or 3 months before TTC again. So, the time has come and we are ready to start TTC our rainbow baby. 🌈

My periods have been different and we want to get it right... I heard ovulation tests come on handy but have never tried them. Which do you recommend? Where can I buy them?

Thank you all!! 💞