Hi I had unprotected sex two days before I was due to ovulate . I took the morning after pill within 12 hours of the unprotected sex. Seven days latter I have now had a bleed which is brown in colour . Initially it was only when I wiped but I felt it was getting heavy so used a pad . I've only used 2 pads . The first pad the blood was red and pink in colour . The second pad was brown in colour . I'm getting worried and don't know what this means. Please help