Am I pregnant or having a light period ?

[Luna1079]

I had sex the 13 of May then on the 18 I noticed light pink discharge when I wiped the next few day it was brown burgundy it was all to light to be my period but then I had period like blood with clots for like 2 days in total I spotted on and off for 5 days my period was due the 22 I miss 5 days late today couldn’t it be implantation bleeding or could it be just a extremely light period ?We did use a condom as well I’m just a bit confused by the bleeding and the later period