hi i had my last period 7th Aug till 13th Aug which is regular.. Me an my bloke are trying for a baba i sadly suffered a miscarriage in April which has made me think am i infertile.. anyway we have unprotected sex. over the past few days i have had really bad headaches an feel sick but this does come an go.. on the 23rd Aug(AM) i noticed brown fluid in my underwear so didnt think anything of it just thought my period had come early but then it stopped 24th(AM) Im very confused an worried Am i pregnant or not????HELP ME PLEASE