Pregnancy and period ??

Hi, just looking for some advise.

I have taken which looks like a period lasrt night and i am bleeding as i normally do now. ​

However i took a pregancy test yesterday as well as we have been trying for a baby and i have been feeling very off at the moment and it was positive. ​

My period is also 4 days earlier which never happens to me.​

Has this happened to anyone else before?​

Thanks x