On the combined pill i had unprotected sex had an abortion july 19 no period as yet and its the 1 september?

Sorry: about the contraceptive failure. After any conception, it is common for menses to be a bit irregular for certainly one month and often 2-3, cannot say about your particular case.

Likely normal: Hello, If you are on the Pill, then your cycle could be very light or nothing at all. This is not unusual. I suggest you give it more time. A home preg test may be useful if you do not have a cycle next month just for reassurance.