Hallow Dear,
Doing pregnancy test on urine on 2nd June after having sex on 1st June was too early for detection of pregnancy. These tests give reliable tests when the conception is 3 weeks or more old; i.e. about 8-10 days after missed period. So you should have done it after 21st June.
You were expecting your period on 12th. It means your egg release was due on 30th May. Egg has life of 24 hours and the sperms are active for 72 hours. In short, your intercourse was on very fertile day.
So it is most likely that you were pregnant. It is likely that severe
abdominal pain followed by brown bleeding and then subsequently heavy bleeding is due to the abortion process. If the clots you passed contained some white 'clots' also, it means they are products of conception.
The best option for you is to undergo
ultrasonography. This will reveal whether you have any products of conception still left in the
uterine cavity or whether the cavity is empty. If some products are still in the cavity (
incomplete abortion), you may have to undergo surgical evacuation of the uterus. If there is any evidence of blood in the
pelvic cavity, you have to keep the possibility of the pregnancy outside the uterine cavity (ectopic Pregnancy) in mind. This is a very serious bleeding emergency and calls for immediate
medical help with
blood transfusion.
So please report to your Gynaecologist for appropriate diagnosis and management if required.
I hope this helps you.
Dr. Nishikant