Spotting.

Felishia • Im 23 and a mother for a daughter who is almost 5 years old and a 1 year old son i have been with my husbamd for almost 6 years and wr have been married for almost 2 years
I wad supposed to start my period yesterday on Tuesday and its been that way for months. I am on birth control pills. But when it didnt come yesterday i bought a pregnancy test and took it with the first morning urine but it was negative. Thought ok no big deal. But when i wiped there was a littlw blood so i thought that it was my period so i put a pad on and there is almost little to nothing on the pad after wearing it all day and the only time that there is any blood is when i wipe and that is it. I dont know what to think. It is unusual for me. I am 23 and a mother of two kids one 5 year old and a 1 year old