Certainly!! The only sure way is abstinence. Most common reason for early vasectomy failure is having unprotected intercourse too soon without checking the Post vasectomy semen analysis. There are plenty of residual viable sperms after the vas deferens are cut. It can take more than 20 ejaculations after to clear them. That's why it's important to use back up contraception until proven otherwise. Of course, there is other rare cause like recanalization of the vas deferens. Some reports that different vasectomy techniques may have slight higher incidence of this. Unfortunately, none is 100% sure. I have met couples who both had sterilization procedures because of their fear of the failure rate.
The vasectomy should make him completely infertile; no pregnancy will result.
Vastectomies can be reversed, but it isn't 100% effective.
Of course men still enjoy sex after a vasectomy! In fact nothing changes except their semen doesn't contain any sperm anymore (what's about 3%) and the fear of (unwanted) pregnancy is (definitively) gone ...
Possibly. You do often hear stories of people who have become pregnant even after their husband/partner has had a vasectomy
You can´t avoid pregnancy by using a certain position. The only way to avoid pregnancy is by using a form of contraceptive such as the pill, the condom, or the fertility awareness method.
possibly a sign of pregnancy
Not actually of pregnancy but possibly of ovulation...in which case pregnancy has a good chance of occurring.
Nearly 0%, due to the vasectomy more than the fact that you are breastfeeding, etc; but nothing is fool proof except abstinence.
Possibly the pregnancy test is ineffective. Try another one.
Yes, or possibly gas.
A Vasectomy procedure will cost about $1,300 to any man not wanting to have children any longer if the procedure is done by the Houston Vasectomy Clinic.
Oh yes, highly likely. Men need to be rechecked by urologist and have a zero sperm count before having unprotected sex.