TTC question

Hi all! My husband are in the second month of TTC (newbies!) and after the first month, my body’s been doing some things it never has before which I’m hoping someone could help me figure out! For starters, AF was 7 days long and it’s usually 4. It was pretty heavy and my blood was SUPER red which it never is. I called my doc and she said as long as I was getting a BFN that it was fine. My husband and I then BD once it was over and I spotted a lot the next day. We BD last night again ( I’m three days out from ovulating) and all day today, each time I went to the bathroom there was blood. And it was red too...not pink or brown. Any idea what’s happening to me? This is all so new to me and my body has always been so predictable!! Any help is appreciated!!