Hello,
I am a 24 years of age. I have been sexually active before and have never had any problems having an erection or getting fully hard.

I had sex for the first time in almost 8 months three days ago. Everything started out fine, but after a few minutes of intercourse my penis seems to get softer and not stay hard. I could not get it to stay fully hard or go fully erect for the rest of the time I had intercourse.

Now since then I have not been able to get a full erection or get my penis as hard as usual either. It seems as if my Penis is more flexible now and the tip of my penis is softer and has more flex and can bend easier. Usually my penis stays really hard.

At first I was thinking it might just be psycological but I can still get an erection but it just wont get "as" hard and it is a little more flexible now.

It does not hurt at all, nor did I notice any pain when I was having sex.
However I think I might have hurt my penis or maybe bent it somehow or strained it. I also still have the pleasurable sensation on the tip of my penis when I start having an erection but it seems to be not as strong.

is this possible and will it heal itself if it was strained? How long should I wait to see a doctor if this does not get better?

Thank You