I came off my birth control September 3rd and started getting symptoms of pregnancy: back pain, cramps, severe headaches, fatigue, gas, nausea, cravings, constipation, and today, the 22nd, I got light brown/red/pink smearings of blood. I feel like I have to go deeper to wipe it since it isn't coming out when I urinate. My husband and I had unprotected sex on the 14th, 15th, 19th and 20th. Could I be pregnant?