Bleeding again 2 wks after last period

[nrm1210]

Let me start off by saying, Im only 24 with a 3 yr old boy. I have a regular 27-29 day cycle that always lasts 5 days, until this month. I had my normal period 2 weeks ago and noticed this evening that I had it again which is very unusual for me. I was on birth control but havent taken it in the past 3 months and my fiance and I are sexually active with no protection. When I was pregnant with my son a pap smear I had was abnormal but have not had anything since. What could be the cause for my this bleeding only after 2 weeks. And its not light, it started out as a heavy flow like it normally would with cramping. HELP

[vamp2110]

i've had a cycle at the end of the month then a other one about two weeks later , and about a month later i took a prg test and i wasn't pregnant , so my mom would tell me it happens to her to , the thing is if u haven't already taken a test u should if it's been about a month after and if u ruled that out , then it's just something that happens every now and then.