My 4th pregnancy test dr. Taken is -ve. She gave me pills for menes. My menes are late. Am I pregnant?

The upt is. Reliable to check for pregnancy. If you have been seen, pregnancy test negative, your not pregnant, other things can cause your period to be late and that is what your doctor is looking for. Gd luc.
Not sure. If you take pills to bring on a period it can be 2-5 days after finishing the pills that the period starts. If you've gone longer than that and no bleeding and you haven't just had a pregnancy test the do one again.