I am confused, what is the possibility of a cist making 2 preg tests turn positive on the 18th of april took 2 back to back..and today 2 more test say positive and it is the 21st I do have cists but I am confused because I had a period april 6th,and I started spotting on the 17th and it got redder I have a closed cervix so no miscarriage but I just want to know are cists actually strong enough to turn 4 tests positive......