TTC - 12dpo

I had a chemical 4 weeks ago on August 6th. I was about 5 weeks pregnant and it absolutely broke my heart but I went to the dr the following week and my levels were back down to 0. I believe I had a positive ovulation test on the 22/23 and we BD The whole fertile week. I am about 12 DPO and just curious if I tested yesterday and it was negative that the chances of pregnancy is low? I know they say to wait until after your period to test which I’m supposed to get in the next few days. Has anyone gotten prego right after chemical? If not was your period pretty normal?