Took mtp medicines as prescribed by doct for 5.5w preg. I started bleeding and passed huge clots after the first tab itself. Then had a break day followed by 2-2 tabs of the next medication each day. I bled for approx 6-7 days from the start. Then it stopped. I had sex 2 days ago, i.e after 2 weeks since i took the 1st pill, post which next day i started bleeding. This is the third day now, I'm bleeding like a light period flow, using 1-2 pads in 24h. I'm too scared as i bled earlier, then stopped and am bleeding again. Minute thread like particles are also being passed. Can this be serious?