So ladies my period was due the 19th till the 23rd an according to my app i ovulated between the 31st aug till the 6th of sep an i had unprotected sex on the 12th of sep, my period for this month has not shown i am 10 days late. I have been feel quite sick these past 2 days an today also had headache's too an also there is alot more wetness down there than usual, i have taken 2 tests on day 6 of missed period an day 7 of missed period an both negative so please can someone give me some advice or someone have something similar happen to them.