Hello,
While allergies to lubricants are not common, there is always the possibility so you could try doing without this to see if it helps. There is a condition called vaginismus where
pain is present with vaginal penetration but I suspect this would have been happening for a longer time if that were the case. Orgasm can also cause muscle contractions, even of the uterus which would feel like cramping.
It is possible you have developed some type of infection - bacterial or fungal (yeast) and this can be treated so if it continues you should see your doctor. If you prefer to try treatment on your own first, yeast is easy to treat with over-the-counter anti-fungal creams.
Be alert to any external exposures that might be irritants for you including tight-fitting pants.
Best wishes.
The answers in online forums are for information only and are not intended to substitute for medical advice and care. Please see your personal health care provider for further evaluation of your individual case.
Debbie Miller, RN