Is there something wrong with my boyfriend?

ok well i'm pregnant and for the last week or so i haven't really felt good and stomach has hart and all that stuff. I haven't been felling up for any ual active. So i know my boyfriend is really, like "wanting something" if you know what i mean, i thought maybe i would do something for him (i did want him to do any thing back, because i wasn't feeling good) so we was cuddling but then when i tried to "please him" by giving him a bj! he pushed me away and got up! is that normally could it be him just feeling bad for me doing something to him, and he doing nothing to me? What should i do to make him happy, after that happen he hasn't as ual or any thing like simple making out??