I had my period March 3, on March 6 it ended. I try unprotected sex 8. I knew my fertile days March 16-21. I continued having unprotected sex all the time at least once or twice except the 21st. My most fertile day was the 19th. I am wanting to get pregnant. I would love to know when I can have any signs, and how long till I will know that I conceived. The 16th and 17th after sex I felt tired, and very sleepy. The 18th I felt something weird like a warm flash on my right leg. The 19th I woke up early at 4am feeling very hungry. Today I felt all day my stomach very bloated, and like something is pulling it down, more like pressure.