In september and october my husband ejaculated in me once in those two month before my period but after that I got my period in september, october, november, and december, I have no symptoms whatsoever, and I took three home pregnancy tests and all were negative..bUt I fEel mY tUmMyY gEtTiN a LiL bigger..can it be gas oR what can it be..and Is there any chance I might be pregnant??? And today wHeN I peed i wiped and I noticed a light red orangy color on the toilet paper, is that a sign of pregnancy oR that my period for this month??? Plz help.