Spotting 16DP5DT

Has anyone that has gone through IVF-FET experienced more than 10 days of spotting in 1st trimester?

I started spotting at 6DP5DT and today is day 16 which makes 10 days and counting. My betas were good and increasing so I am definitely pregnant. My RE said spotting is normal but I can’t help but be concerned every time I wipe after urinating. It’s mostly brown spotting with discharge or mucous, but sometimes it is dark red to rust-brown. A couple times it was different shades of red from pink to maroon. I was on baby aspirin since the start of my treatment and was told to stop since it can cause unwanted bleeding. I stopped aspirin 3 days ago but still brown spotting. Any thoughts?