question: i am due on my period today, my last period was 7 th oct 2010, i have done 3 pregnancy tests 3 days before my period and all were positive, but i done 2 this morning and theya re still positive but very faint lines. does this mean the hcg is dropping and i will miscarry as i have had 4 miscarriages before and worried, also i chart my changes in my cervix as a way of predicting ovulation can u tell me it should feel if its closed for pregnancy