Have any of you ladies conceived after miscarriage without using OPK??? Stories please!!!

36 ttc#1 after MC... I got pregnant before by just using the app but I see a lot of women who say that their ovulation is all out of whack after miscarriage so I'm wondering if any of you ladies just let it happen and got pregnant on your own??? My AF came exactly 4 weeks after my MC so I'm assuming my cycle went back to normal...? Thank you in advance and baby dust all around🎊🎊🎊