Brief Answer:
You have taken improper dosage, have explained correct procedure.

Detailed Answer:
Hello
Thanks for writing to us with your health concern.
Let me explain the procedure of medical abortion to you.
First and foremost, medical abortion should NOT be attempted without medical supervision.
1. Even if the home pregnancy test is positive, the pregnancy needs to be confirmed by a gynecologist and exact dating needs to be done, since these pills work only up to specific gestational age, and not beyond that. So do not act just after taking a pregnancy test at home.
2. You need to rule out possibility of ectopic pregnancy (pregnancy outside the uterus) which will also be done by a specialist, as taking medical pills in that scenario is disastrous and life threatening.
3. Medical abortion has also got chances of severe life threatening bleeding at times, for which you need to be under medical care.
4. It has a 5 % failure rate, following which you require surgical termination, which might be needed in an emergency also.
5. Unsupervised medical abortion might cause severe infection, retained products which maybe undetected. Hence it is important to have a follow up visit with your gynecologist two weeks AFTER taking the pills, at which it would be confirmed that the pregnancy was successfully and completely terminated.

That said and done, if this procedure is supervised by a doctor, it is quite safe and fairly successful.
I would give you a few guidelines about medical termination: Each pack contains 5 tablets -
1 tablet of Mifepristone…200 mg
4 tablets of Misoprostol, each containing Misoprostol…200 mcg

Mifepristone tablet is taken orally and 48 hours later, 2 tablets of Misoprostol are taken orally or vaginally.
Bleeding might begin at any time after taking Mifepristone or Misoprostol, but generally starts within 6 - 8 hours of taking Misoprostol tablets.
Another 2 tablets of Misoprostol are taken 24 hours later, irrespective of whether the bleeding has started or not.
If you vomit within 4 hours of using any pills, the dose has to be repeated..

You have taken just 3 cytotec tablets, without initial Mifepristone tablets, so you have not taken the medical abortion pills in proper dosage.
Now, please wait for the bleeding.
If you bleed, or if you do not , get a scan after 10 days to know, what has happened, and then to proceed ahead.
Since you have taken improper dosage, there is a chance of failure of the pills, leading to need for surgical abortion ( D and C ).

All the best
Please feel free to discuss further.

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