Hi... I was trying to conceive... I had sex around my ovulation... january 17th , 18th and 20th.. and I was ovulating on 19th... and my period next month was supposed to come feb 2nd... and I started bleeding 2nd ,but the thing is it does not look like a regular menstrual flow.. it s lighter than I usually have... could I still be pregnant ? Could it be implantation bleeding ? Pleaseeeeee help .