I look at if I am about 4 to 5 months pregnant and every pregnancy test i have taken has been negative or error. My dr even did just the regular one and it was negative. he ordered a cat scan but couldn't do that without knowing fir sure if I was pregnant. i still get my period but I am still on birth control and also many other meds. I asked him to let me do an ultra sound to be sure he ordered one but not for that and now found out i have gulstones and my dr refuse to do blood work ulta sound or anything else to make sure i am 100% not pregnant