Well, i was 5 or 6 weeks, unsure because i dont have regular periods, and i didnt know i was pregnant until i miscarried. There was NO way that i could have missed it, there was NO way that i could have mistaken it for a heavy period or anything like that. i knew right away what was happening. hth
Have you had a positve PT? There are many different indicators of miscarriage. Cramps, bleeding, passing tissue being amongst the most common. If you think you may be pregnant or miscarrying you should go to see your doctor. They can perform blood tests to test your hCG levels which is usually a good indicator as to what is happening they can also examine your cervix to see whether it is open or closed.
You should know that all pregnancies and women differ with the symptoms that they show when miscarrying, what could be bad news for one person is not necessarily bad for the next.
Hope this helps xx