I had my period last week which just ended on Tuesday it was normal length I noticed it was slightly heavier ( mainly clotting tmi) wasnt painful ( normally im doubled over in pain... However since I've finished I keep getting twinges like period cramps, really bad headaches, I've been getting random twinges in my nipples and a constant sicky feeling .. I'm not really sure what to think I know you can't have a heavy period if your pregnant and af arrived in time well a day,early .. I have a early response test but don't want to use it as I was saving it and I know deep down I can't be pregnant right??