my boyfriend and i always use a condom when having sex. Recently, about a month ago, or two, he started saying his penis ached even during intercourse, so we'd stop. this is recurring and he thinks its because of the condom. we use latex condoms. what hurts is the tip and he feels the condom is too constricting, both at the base of the penis and the condom tip not having enough space to accommodate pressure from the ejaculation and he feels like some of it returns inside. does this make any sense and if it does, what could be the problem?