Question about oral sex..

So I am 27.. I just got married last Month and lost my virginity to my husband... we both lost it to eachother.. just last week he asked for bj and I'm not sure how to do that and I don't feel comfortable doing it... I tried once and I suck at it and I don't think I can do it. .. I asked him to go down on me and he said he's not comfortable whenever he thinks about it or feels me wet when he fingered me like twice he feels like he's going to vomit.. I don't know if this is normal or wat should we do to improve our sex life because he says he is satisfied eventually but I'm not.... we don't foreplay we just kiss alot make out n then he goes straight into entering me.. it usually hurts alot really painful.. I'm scared of having sex after few times and I don't want to be like this.. I tried lubricant and it still hurts a bit..not sure what to do.. :/

Thanks!