Back on birth control but missed 4 days help

Tiffany

Ok I had my period from the 1st till the 4th but my doctor wanted me to start birth control she had me start it the day after my period.. well I miss 4 days of this week it wasn't back to back I missed Tuesday Wednesday took Thursdays but missed Friday and Saturday.. I noticed tonight after I using the bathroom and wiped that there was little blood should I been worried

First pic is from yesterday

The next two are from Early this morning at 1:07am

Could this just be from where I missed my birth control.. btw that birth control I'm on is the same one I was on where I got pregnant with my 2nd child and was just on day late taking it