Okay so I am on birth control (tri sprintec) and I am not the best about taking the pills on time. I had a period from March 28-31 and had unprotected sex on April 7, 9, 15, 25, and 29. My cycle is always 28 days. My last period started a little late on the day it was due April 25th and ended a day early on the April 28th. Ever since this period (for the last 8 days) I have had stomach problems (constipation, gas, bloating), headaches, fatigue, my breasts aren t sore but they feel heavy, and mild lower abdominal cramps. I also started new my birth control pack a day late if that changes anything. I have never been pregnant before so any advice is helpful, thanks!