I really need advice

I started my second pack of Cerazette on Thursday and I didn’t get a period whilst on my first pack, took two tests after I was 7 days late both were negative. But since this morning any i time I pee and wipe there’s pink blood on the toilet paper but that’s it, is this normal/ what could it be?? (Edit I checked again and it’s no longer link when I wipe picture below of what it is now )