New pregnancy after mmc

Mmc last month, had a d&c and bloods were tested to make sure hcg went back to 0. They hit 0 around 2 weeks ago and then a day or 2 after I got ewcm so we bd’ed. Noticed my breasts are super super sensitive which never happens. When do you think is the earliest I can test? Do I even have a chance of conceiving before af arrives again?

Any insight would help so much! Hoping for my rainbow soon!