strange bleeding at 6mo pp

since 6 weeks pp (when i got my first pp period) i have had normal, consistent periods. (i got an iud put in @ 6weeks pp also, at the time that i had my period)

anyway, i get my period normally around 26th/28th of the month, and it will last around 4 days. this month it started on the 17th, and lasted until the 22nd or 23rd(i don't remember exact date). it stopped for a couple days, no bleeding what-so-ever. then after having sex i just started bleeding, and ever since then it hasn't stopped! it's like i'm having another *really light* period. this is strange, nothing like this has happened before. what could it be?

i think it is just one irregular period. I doubt its anything to worry about, i know a lot of people who just randomly have an irregular month. Unless the it lasts more than a week i bet its nothing!

that happens to me too, between periods. my gyno says its normal unless it gets heavy.