last had sex april 20th. had spotty then light four day period two days early in may 7th. in june period didn't come. week later on 15th took a test ept 25 miu came back neg. Took same test again on the 17th same neg response. She has had a baby previously and showed all the signs of pregnancy by this time last pregnancy. Yet this time she has not one sign of pregnancy. Im concerned because both she and I are not ready for a child and wish to not be pregnant right now. Some other info. She switched birth control brands (same design different brand) in mid april. She forgot to take a weeks worth of pills two weeks ago but we are not worried about that due to us last having sex april 20th. She has been under a ton of stress due to finals and her mother. The last time she missed a period was when she was last pregnant. Im just worried myself. She keeps telling me not to worry that she is not pregnant, she says its an instinct. What do I know im a guy. lol Thanks guys, Michael update took another test today, another neg. going to stop testing she has not signs and has taken three test. It has been over 60 days since we last had sex.