I found out the father of my child is bisexual

Hello, I am 18 years old and I'm currently due to give birth in less than a week now with my boyfriend who only just revealed to me a few days ago he is actually bisexual. I don't know if this should affect anything with us or my feelings for him because I do know I still love him and I don't know have no problem with gays or bisexuals, it's just te thought of the father of my child doing things with another guy kind of makes me feel sick inside. He says to me he's not bisexual "like that", whatever that's supposed to mean, but I know for a fact he's had sex with a guy once and I think it was during when I was pregnant but we weren't together as we split for a bit in the middle of my pregnancy. He tells me he loves me and only has feelings for me, and if anything he prefers girls over guys and just really finds some guys attractive and good looking. Should I continue to be with him or see him differently?

Do you think he's telling the truth or just subconsciously trying to push you away a little out of normal, natural panic at his age, given the huge responsibility about to befall him? Like you've said - 'whatever "not like that" is supposed to mean'. It can't mean anything, it sounds like pure nonsense. 'Once' does not gay or bisexual make, or else most of the population would be going around saying they were bi by now, especially those that attended single gender schools and colleges. Plus true gays or bisexuals don't tend to basically communicate this: Tried it once, didn't like it (hence didn't repeat it). Tell him you heavily suspect you might secretly be a Martian because you love eating Mars Bars. ;-)