I never experienced a chemical pregnancy before. I’ve had 3 previous pregnancies.

My last period was in December 18,2020 and I’m almost 3 weeks late,the first 2 pregnancy test I took we’re negative so I thought maybe it was too early so I waited then got a positive on a digital test January 27th around 3pm so Sunday I started spotting light pink but didn’t think anything of it,3 days ago when I would wipe it would be a bright red but nothing else. So I took about 3 different tests and they came out negative. I haven’t been heavy bleeding just spotting and no cramps so I’m not sure what to think of it because I’ve never had this happen before. Had anyone else went through something similar?