Cant last and I get soft /u/thorcarlsen7 Sex

I (M20), just recently had my first sexual encounter with my girlfriend (F20). I can last rly long for blowjobs and handjobs, but when we decided to dk the deed, I realise I lose my erections really quickly (whenever she grinds, or when we put the condom on). I literally get soft midway. On the rare occassion it’s hard enough (semi erect) to enter the vagina, I cum so quick, which is a stark contrast to HJ n BJs. I am a slightly chubby 20 year old ( muscular and abit chubby as im currently on a bulk). I lift regularly and get 9 hours of sleep a day. I work a v flexible job w no stress. I eat healthy and we’re v comfortable w each other. Do I have erectile dysfunction?

I (M20), just recently had my first sexual encounter with my girlfriend (F20). I can last rly long for blowjobs and handjobs, but when we decided to dk the deed, I realise I lose my erections really quickly (whenever she grinds, or when we put the condom on). I literally get soft midway. On the rare occassion it’s hard enough (semi erect) to enter the vagina, I cum so quick, which is a stark contrast to HJ n BJs. I am a slightly chubby 20 year old ( muscular and abit chubby as im currently on a bulk). I lift regularly and get 9 hours of sleep a day. I work a v flexible job w no stress. I eat healthy and we’re v comfortable w each other. Do I have erectile dysfunction?