hi on advrige you overlate 2 weeks befor you get your periad and thats only stays constent is you lead a very boring life as doing anything can change it and some pepol overlate in there peried.
sperm last 4 days on avrige so every 4days have sex but if he has a low leval then he can run out. you nead to get a book and start righting tings down.
eggs are good for 24 h so you might of mist it if you where testing at difrent times. time every day at the same time.
If you get the nack of it don't have sex for two weeks befor so his sperms at the hiest leval and then if your closes to it then stat and go every 4 days or three.
you nead to time your self for a cupoul of munths to make shore of your times. and have you bean on the pill for a long time that can stop you overlating for a whyal to and its not recomended to try till you bean of it for at least 6months
if first you don't sesead jump on him again!
