We have been trying for a baby for 4 months after having my IUD removed. So I went to the doctors for a blood test after 14 days being late on my period and took two HPT and both showing negative results. That night after going for a blood test I started bleeding after sex. Sorry TMI. The bleeding has only happened for a day? I normally have a 5 to 7 day cylce - could I still be pregnant. Has anyone else experienced this before?