1.It depends on the regularity of your girl's menstruation. There are dozens of reasons that can affect the ragualrity of the menstruation.
2.Any kinda test cannot ensure a 100% exact result, so do the test papers!
3.Why don't you go to the formal hospital?
可能是他想得太多了,使得经期提后了,让你女朋友不要想太多,既然测试了没有怀孕就不要去乱想来,怕怀孕下次就做好避孕措施吧,免费猜来猜去,经期不延迟才怪,保持平常心.
测纸也不一定准的,因为它是要你怀孕至少11天才能测的出来的,还是快去医院看看吧!祝你好运
你确定她只有你一个性伴侣吗?
去医院最好
快去测一下,百分之九十是怀上了