My girlfriend is on lo loestrin fe and is starting her last week of her fourth cycle. She has had some side effects like sore breast, stomach pain, headaches and stuff like that but she has never had bleeding unless it was her period... with that being said the weekend before her period she had three days of a pretty consistent flow of blood that soaked her panties and even bled through her pants. And was very much annoying. It started off a dark reddish brown then by the third day it was pretty much all brown with some clots in it. Could this be implantation bleeding or am I just stressing? She has not missed a pill and has never taken a pill late so I would say it’s perfect use but still I need reassurance lol. Thanks