I'm sorry the MAP didn't work for you 
I had a medical abortion at about 6 weeks. I went to the GP and was referred to Marie Stopes. I then called them and had a telephone appointment. They offered me a face-to-face counselling appointment which I didn't take up as I was very confident in my decision. They we took a while to find the quickest appointment, which was only a few days later but I did have to travel for it. I had my first appointment at 10, had a scan (which you don't see) just to confirm the pregnancy and date, and then took the first pills, which terminate the pregnancy. Then I went back 6 hours later and took the second pills, which start the bleeding.
I didn't start bleeding for another 4-5 hours. The bleeding was very heavy but it wasn't overwhelming, if that makes any sense. The first night I did wake once to change the pad, but had plenty of towels in bed so I felt reassured I wouldn't make too much of a mess. The next few days it was just like a heavy period, with period cramps - certainly nothing that I couldn't cope with.
In fact, the worse thing for me was the very large dose of antibiotics you have to take, which made me feel very rough. But I'm sure not everyone reacts to antib's in the same way.
Overall it wasn't pleasant, physically, but neither was it horrific. DD watched a lot of CBeeebies but hey, it was only for a short period, it was hardly the end of the world. It was nothing that I couldn't hide from her, nothing more than 'mum's feeling a bit poorly'.
I have one DD, she was about 20 months at the time, which was the main reason I made that decision (I had HG and wanted to leave a much bigger gap before going through pregnancy again). I promise you you certainly aren't the only woman who will make this decision; I can't remember the figures, but I'm sure that a huge majority of women who have abortions are already mothers. You are thinking about the family you already have and that is a good thing.