Early pregnancy spotting

My husband and I had a chemical pregnancy last month.. We are getting positive pregnancy tests this month, but last night I had some bright pink blood whenever I wiped. Not enough to go in my underwear or anything, just wiping....could this be another chemical pregnancy?

Also, my pregnancy tests have gotten darker over the past few days, but still not extremely dark...does the line darkness indicate anything? Here’s a progression picture of the tests.

Sorry this is so long!! Just a nervous wanna be mama over here.