Anyone experience this!? NEED HELP

So I started spotting on june 17 for about 8 days on and off with brownish and pink spotting. Never experienced this. So then in between those days I had one day with bright red bleeding but then thats it. Then a couple days later bright red bleeding for about 6 days. Usually 5, Counted it as af, my hubby and I are ttc. So i was really bummed and yesterday we had a lot of intercourse TMI sorry! But today i felt really sick, my headache hurted so bad I cried and also i felt nausea but went away with some medicine. Then when I went to the bathroom, this came out. Brown with red dots of blood. (Not a great quality ) Can i be pregnant or is this something women experience after af? Please help??