Thanks for your query.Based on what you have stated it seems that you have injury
to your penis while attempting sex. Normally Penis gets fractured when injured during sex with hard erection.This is usually gives severe pain
and thee is bruising of the penis with formation of Haematoma
.In absence of all these symptoms it is unlikely that you have sustained any injury to your penis.Please get colour Doppler study done to rule out the same. and consult some Urologist
for clinical examination and further treatment.