What day should I test ?

I had a missed miscarriage at 17 weeks 2 days and had a D&E on 8/28. I haven’t had a period since. We are actively ttc again asap. I had peak opk 10/4 and we tried several times during that day and the next few days. I had some twinges of cramping 10/12 and very light pink streaking/spotting 10/13. I have no clue how many dpo I actually am or if my normal cycle has returned. What day should I try to test? I don’t want to test too early but I anxiously want to know. Thanks!!