Really need some advice ladies!!!!

I had spotting around the time my period was supposed to show. It was very light almost like watered down pink (tmi sorry). So i put it down here on my glow calendar as i was thinking i had started my period it only lasted 3 days (21st, 22nd , and 23rd) The 23rd was only in the am and had nothing the rest of the night,  then it completely stoped today. and in those 3 days it wasnt all day maybe only once when i wiped then i didnt have it the rest of the day.. Just curious to know if it could be implantation and maybe i ovulated at a later time? I took a test today and it was a BFN. I also have been feeling nausea early in the morning and im bloated. Should i wait or count myself out this month. Thanks in advance!