Hii, i am 27yrs married, trying to conceive for the past 6 months..for the past 1year i have brown discharge 2 days before i get periods after that i will get my normal periods and lasts for 4-5 days..now for the past 1 week i have severre stomach cramps on left side and right side and feeling very tired and have vomiting sensation and back ache..i thought i am pregnant but now i am worried that i will get periods coz i ha am having brown discharge but still i have stomach aches and back ache and side pains...is there any serious problem..