Okay I'm 19yrs old and yes me and my boyfriend has had unprotected sex (ima kill that question right there). I usually wouldn't feel different but I know something is not right. My periods are usually around the same time every month. Which would mean it would start around the 21st and last for like 4 days. And this month my period came on the 15th? Weird.. it has came with more horrible cramps to the point where I'd puke. But its lighter then usual. I usually wouldn't have a appetite when mother nature comes because of the cramps but he'd make me eat to avoid headaches. But now when I eat id feel sick to my stomach and even if I take a pill for menstration that sick feeling wouldn't go away until later in the day.. now I was on depo for 3 months which is ONE shot... not very long I know. And I've been off it for almost 9 months.. 7 to be exact. But now that my body is back on track my doctor said I've been ovulating.. . Im just wondering is it possible for me to be having implantation bleeding or is my cycle being a "douche" by switching up on me? If so why would it do that?? How heavy should the bleeding be? And how long could it last? And having light pink or brown dishcarge a sign as well? Because I've had that before this period came along. I mean I know when you have sex your cycle change but it has never did this. It would usually come a day late or a day early. And I've had a person ask me if I'm pregnant just be my actions and symptoms which would be (headaches, that sick feeling I mentioned, and enhanced smelling. And ALWAYS TIRED! I could sleep al day if I didn't have to work). I'm not saying I am but I'm not saying I'm not pregnant. So yeah I really need to know something before I let my boyfriend know about my suspicions.. he's very caring and understanding and would support me through anything BUT I don't want him stressing over nothing.

Implantation bleeding, which many women never see, is usually just some spotting or very light bleeding for maybe a day or two, but some women may experience it differently. However, there are other reasons for some spotting or bleeding in early pregnancy.

Your period might just be off or this could be due to a pregnancy.
Since pregnancy is a possibility, see what happens when your period is normally due and test at that time.

Hi am having the same problem as what you described and haven't had a definite answer off anyone (doctors,family planning clinic) but they did tell me the way I was describing it and what was happening defo sounds like implantation bleeding? I really hope mine is and I hope yours id the answer you want 2 I will keep you up to date of what they say about mine many regards K.