Anyone else? - PLEASE HELP!

Coral

Hi ladies, got a bit of a weird one. Basically, today I took a pregnancy test (2 days before period is due) and it came back clearly positive. My Mother in Law also saw (in a picture) it was positive and I posted on here to ask and others saw it too. However, 1/2 hours later my period came, I wiped it was red/pink on the tissue so I put a tampon in. I wore it for at least 5 hours and when I removed it, the tampon wasn’t fully covered in red like my usually first day period, it was brown with a bit of red blood here and there (no blood clots) now this is very unusual for my af. I have got cramps which lasted all day, but they aren’t as intense as my normal af cramps but they are noticeable. Has anyone else had this experience before and still been pregnant? Anyone got advice/ideas? TIA x