What Is The Cause Of Stomach Pain After Abortions?

Hi, I have had three abortions in 3years. The first one really hurt, the second one didn t hurt very much and lastly I had my abortion 5days ago at 8weeks, it really hurt and I regreated killing my own flesh n blood. I visted a doctor 3days b4 the abortion and he gave me some medicine to take b4 inserting the main medicine. Wen the day reached I inserted it didn t take long enough when my stomach started hurting and was feeling like going to the toilet every now n then, finally a lot of blood come out at once I sat on the toilet sit for some time and lots of clots come out suprising I saw a small tiny hopeless child in the toilet it had neva happened to me it had arms n legs, after that I was able to rest and no more stomarch ache, after a day my stomach started aching not very much it feels like something is pulling in side my stomach...am scared of wats happening to me could it be that my stomach is rotten n wat if its rotten how can I tell? Please help