Confused

Buffy

On Tuesday I took a pregnancy test, it was a faint positive. I feel pregnant. But then late Wednesday I started to bleed heavier than a normal period. But it stopped next day. I’ve been trying to conceive for 6 months now. I’m 40 and I have uterine fibroids. I still feel pregnant, morning sickness and my breast are tender. Did I misscarry? Or could still be pregnant? What happened?