Clots of blood during my period?

I know that it's normal for clot bits in the blood. But I've had my period for 2 weeks? I usually have it for 6 days. Is this a period or am I having a miscarriage without even knowing I was pregnant in the first place? I'm on the pill but a bit more than 2 weeks ago I forgot to take them. And I was having sex with my boyfriend at the time.
Clots of blood during my period?
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