Hi. I'm 9 days late and have been having pregnancy symptoms, i.e.; fatigue, nausea, lower back pain, sore nipples, bloated and etc... I took 3 pregnancy tests at different times and they all came back negative! (Frustrating) my husband and I are hoping I'm pregnant. The last time we had sex was the day I was ovulating and here we are now with me being late. I've been having a regular menstrual cycle and have been off the pills for about 3 years. Could I still be pregnant and when should I go to the doctor for blood work?