Any Advice

One side of me is just a little frustrated and the other side of me is just saying it will happen when it happens. I have been pregnant twice both without monitoring any ovulation, bbt, etc but resulted in miscarriage...We've been trying again but this time I took Digital Clearblue Ovulation Tests and BD on my peak days I have never been late before I was 14 days late then...BAM! AF showed on Sunday do you think I now have irregular cycles? Or posibly no longer fertile? I try not do jump to conclusions but it's hard at times wyt?