Possible chemical pregnancy?

Kim • Mummy to Aliza, 09/06/2017 - Henry 05/02/2020
So I did two tests last week which had vvf lines, day after I started spotting for 6-7 day's a week earlier then expected. AF was due Tuesday, didn't arrive. I've took tests this week and they are definitely BFN's, can't help feeling it was a chemical pregnancy.