I have had unprotected sex and used withdrawal method and now my period is 5 days late , my breast are sore and bigger, I go to toilet a lot, have lost apetite,my stomach is bloated and I did a pregnancy test it came out negative, what could be wrong?

Um... did you actually think "the Withdrawal Method" was actually a form of birth control? You need to find out whomever told you that and smack them upside the head... because they are stupid... and if it was online.. stop visiting that site... because I have to tell you its not... never was... never will be.

Do you think you can play with a leaking garden hose without getting wet? Nope... and a wiener is equal to a leaking garden hose.

So yeah its really possible you are pregnant.

However none of those except being 5 days late is a pregnancy symptom... and you are going to have to sweat it out for another 9 days before you can even take a HPT to find out... because take it sooner and you might get a negative even if you are. So I'm not at all surprised your test was negative... taking it this soon means nothing unless it actually was positive.

Withdrawal does not work, plenty of sperm in early fluids. So of course you could be pregnant.

You have to wait till you are 2 week late to even start testing. So wait another week, or week 1/2 and then test again, with first urine of the morning.