Bleeding in pregnancy? Help!

Hello Ladies! Sorry if this is TMI but Im a little worried. I went to the ER two weeks ago (I was 26 weeks) for vaginal bleeding. I woke up early that morning because little one was going crazy in my belly, kicking and squirming nonstop. I got my two year old up and carried him out the room, I felt something leaking from my vagina (I assumed it was because I had to pee). Went to the bathroom to pee, I wiped and noticed the blood. It was red with clots and looked like I had started my period. Never had any bleeding in pregnancies so I panicked. I had some minor cramping and called a family member to take me to the ER. I got there and had an ultrasound done for my placenta. According to then they could not figure out why I bled. I was giving a shot for my negative RH factor. Bleeding subsided in the hospital and they sent me home to rest. I rested for the rest of the week with minimal activity (as I do have a toddler to care for) and then, BOOM! 27 Weeks pregnant and bleeding again. This time it was pink and light though still with clots. It was a small gush and then done. Two days later .... Bleeding AGAIN!! Now it was coming with discharge, more clots and a huge gush of blood and then it was done again. I tried going in for my follow up appointment but was refused because I did not have a referral from my primary. This being because my primary no longer accepts my insurance and have been having difficulty getting a appointment soon with a new one. There for I am being refused care and I am so angry!! I am currently looking for prenatal care else where and nobody has any openings for me?! I am afraid they missed something in the ER. Idk something does not feel right. I have had a prior c-section if that means anything. Baby is also in a head down position. Has anyone else experienced anything else like this or have any advice? Am I just being paranoid? Sorry for the rant lol.