Brown spotting?

Hey y'all, my husband and I have been trying to conceive for the past few months, and so currently, I'm about 7 days late for my period and a couple of days ago, I had some brown spotting that lasted for a day, 2 days later had very very light pink spotting and then today, about 4 days later, i woke up to a TINY bit of brown spotting in my underwear. Does this sound sketchy to you? Is it possible to be pregnant?

also, about two weeks ago I was experiencing extreme nausea for about 5 days straight, don't know what that was about but curious as to what you all think!