So i have been on birth control since i was about 14. I used to have incredibly heavy debilitating periods. I am 23 now. Since starting birth control my periods have been a lot lighter. For instance I will usually have to change my pad about 5 times a day to 6 times a day for the first two days and then three or four times the next couple of days and then I'll spot for a day so my periods last about five days. But this time when my period rolled around nothing happened until Thursday and my periods usually start on Tuesday. On Thursday night I got a little bit of spotting of light pink discharge on my pad. So I thought okay my period Is starting but then all day Friday I had one more small spot of my pad all day and when I wiped one time there was a very very small blood clot that looked brownish red. And today I have had nothing. This is nothing compared to my normal period. I'm not more stressed than usual and I haven't changed any of my medications and I work out regularly but I've worked out the same amount that I always do so now I'm concerned that maybe I saw implantation bleeding or maybe something else is going on