Hi ,I m 33 years old,had taken primolut n about 3weeks ago ,my period delayed for 12days. I did 3 pregnancy tests and they all result positive ,I went to my doctor and told me that I may not be pregnant because the pills have a chemical that can show that I m preganant and in reality can not.i m going to have a blood test to see if its true or not,kindly please can you give me your advise,as I m very confused,and I really would like that I m really pregnant.