hi, i just have a quick question/comment that i need help with. my boyfriend and i have been trying to conceive for awhile now and we are having so success. recently we were having sex and he said i was closed off, i guess a couple days earlier before this time we did it he said he felt something like a tube that he could go into and that it was an amazing feeling, but now its gone? i don't understand what this means but i guess the tube that he used to be able to go into is now gone, he said he just feels blocked off. could this be a symptom of pregnancy?