I seem to have a weak urine stream after sex?

Weak stream after: Common issue after sex/ejactulation...Reflex action for bladder to close so ejeculate goes out the penis not into the bladder...Unless you take flomax (tamsulosin)....This should resolve a bit after ejaculation.

Normal: Sexual activity can cause some swelling of the urethral tissue. In addition, the pelvic floor muscles which contract intensely, especially during orgasm, can stay hypertonic for a bit and this can affect urine flow. As long as it resolves in a few hours, no worries.