I have a odd pimple like hard bump on vagina. I have been blood tested for herpes at 9 and 13 weeks?

Bartholin cyst. What you described suggests Bartholin cyst. You should discuss it with your doctor at the next visit. If it gets painful, develops a discharge or more than doubles in size, see your doctor sooner.
You may visit this site for info on this issue: https://www.mayoclinic.org/diseases-conditions/bartholin-cyst/symptoms-causes/syc-20369976
Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex.
Get HPV vaccine.