I believe I am 7 days late on my period. I have taken several pregnancy tests starting from the second day of my missed period. Two of the pregnancy tests were cheap ones and they were negative. The other three were the expensive first response ones and they came back all negative. These are supposed to be <99% accurate after your first missed period... I'm super confused what's going on... I do not have any of the early pregnancy signs at all... I need some advice please... I'm 21 and I have been under A LOT of stress lately with moving into our first home and stuff.

Stress can throw your cycle out significantly,

You may as well just relax and test again in a week if your period hasn't started. 7 days isn't really that late so don't stress.

While many of the tests advertise right after a missed period, it will also depend on each women's system. For many women, they can not test well till they are at least 2 week late, and some even later.

Also the tests need to be done first thing in the morning with the first urine of the day to be best results.

At this point, relax, and wait a week, and test again.

Some women are just late a week or two now and then, others even miss a period once in a while. Stress, changes in diet, changes at work, money issues all can affect a cycle.