Feeling scared.

Hello so I'm about 14 weeks today. I'll be 15 weeks on Thursday. Everything seemed to be going good but today I noticed I was cramping through out the day. Pretty light cramps nothing bad. Towards the end of the night I started bleeding as if my period was about to start. It's a lil more than spotting. I wiped and cleaned up and it seem to be slowing down to spotting. I got scared so I used my fetal Doppler and found a HB of 150. So I went to bed feeling a lil better. Now I woke up and started bleeding again. Idk if I should go to my doctor tomorrow or wait for my appointment on Thursday. I'm so scared. I already had a MC last year and this time we got way further. Or should I go to ER now. Will they help or just blow me off as paranoid mom.