January 2 i finished my period and January 3 I had sex with my boyfriend we used condom but aren’t sure if it ripped just to be sure I took Plan B the 4th and January 10th I started having bad cramps. According to my tracker I was ovulating the 10th, the 11th of January I noticed some dark brown discharge on my underwear and it was like that the 12th of January as well it is now January 13th and it has turned red but the discharge has been a very little amount. I’ve been reading and it says there is no way of telling if it’s implantation bleeding or Plan B side effects. Help.