As long as the condom did not break and kept everything inside of it you had no risk.
I need to note this is not the expert forum. Just community volunteers. However, there is a LOT of free knowledge available here.
Thank you Jcc1970 for your reply. How can I tell if everything is kept inside the condom? I could see there is a lot of liquid in the condom but I am not sure if some leaked from the base of the condom. Thank you.
That is not a question I can answer from here. All I can say is if the condom had broken your partner would have known it I'm sure. This is a question you need to take up with him.
I know that the condom did not break. What I am afraid is that because the condom slipped down almost half way and he kept ******* after ejection. The semen might leak from the base (opening) of the penis? I know I might be paranoid but Im really in need of some assurance. Thank you Jcc1970 and sorry to bother you here.