Dear Nuella every human being has neck pulse and it is called carotid pulse,it has no relation with
pregnancy.If you have had sex on 1st september and if your cycles are regular then it corresponds with the
fertile phase so there can be pregnancy.With drawal method is not safe as when the man is in the vagina he
secretes pre-ejaculatory fluid during arousal which contains 300,000 sperms , and one sperm is required to
fertilise a egg. Even if man ejaculates outside the vagina the sperm can swim inside and cause pregnancy.Get a
pregnancy test done if you miss your menses.Take care.