I havent had sex for 5 months.I bled the day after sex..but very slightly.i had a very light period..almost just spotting the following month..a heavy period the following month and nothing at all since...although i did have very slight spotting the other day..i have taken about 4 negative urine pregnancy tests...my stomach is bloated..feeling what feels like kicks(i already have a son) but i'm hoping its just wind...bad lower back pain and just feel so tired all the time. Anyone got any ideas?