About ACIA BERRY DETOX PILLS(URGENT REALLY NEED HELP PLEASE)WOMEN ONLY, MEN IF U THINK U CAN HELP,BUT IDT SO?

okay i am a 20yr old fem. i just had a beautiful baby girl who is 4mnths now, n I'm trying lose my Lil baby fat, so a month ago i order this stuff acai berry detox. been taken it since then. my period finally came on and it usually last 5days(b4 and after my baby), but now so far its been 7, its not heavy its light. i stop taking the pills 4 a day now(i also take birth control), i know i should wait 2 c any changes,but me and my hubby are freaked and worried..DOES THIS SOUND NORMAL 2 THE PEP THAT HAVE USED THIS PRODUCT B4, has this Eva happen to u. WHAT SHOULD I DO..do you think its b/c i mixed my BC pills and the diet pills or b/c i started taking the diet pills to soon after my baby birth?...by the way so far i c no changes, it really doesnt work, plus they charge your account after you cancel it..plenty more pep complained to them doing this.(but my bank is taking care of it)