my last period was on august 31,2012 and my husband ejaculated in me on september 6,13 and the 19 I have had costipation slight migraines and back pain
Also you usually don't start showing signs of pregnancy until weeks 6-7 unless your hormone levels rise high. So it could be that your having them problems for other reason because you would be way to early. Good Luck and keep us posted on what happens please!