So today I went t the restroom, this morning, and I had light brown tinged discharge. i've been having aching since about saturday, off and on, but today i've felt it worse. it's in my lower abdomen, switches sides and sometimes goes over my hip bone and down my leg I don't know how to compare it to pms cramps because I never have them,, which may seem weird. I'm 23, I have 3 boys. I've never actually followed symptoms but I've recentl started tracking ovulation and if I'm right i ovulated march 8th. i had mild aching that day and a lot of discharge. my husband and i had intercourse that day as well. i used a calculator and if i'm actually right says implantation could have occured yesterday do you think i could be experiencing implantation or is it just aunt flo abut to come? i sometimes have irregular periods but mostly on a 28 day cycle. currently not on any bc.