Need advice!

Jocelyn • Hey Yall 22 years young. Married to the man of my dreams. My little man is 18 months old and we`re ttc baby #2
Hey Yall so I have been ttc baby #2 and we had sex the entire week of the September 6th-13th which should've been my fertile Window my period is usually normal timing wise and I bleed very heavy for about a day and a half but this time around af was two days early the first day I had brown spotting which I never spot then it went to light pink spotting and finally to a medium flow then the following morning I woke up to a heavy flow the entire day was still a heavy flow and then all of a sudden nothing but a few spots the entire night so today it was somewhat heavy somewhat medium and agin it stopped. We tested Tuesday this week and we got a bfn I've had morning sickness followed by awful headaches on and off for the past two weeks my back has also been killing me which I never have back pain. I also noticed a weird earthy/ dirt smell to my blood not the usual copper smell. I have also bloated a lot more than usual this time around. Anyone else have any idea what this could all be?