Nausea after sexual activity?

So my boyfriend and I are NOT sexually active in the sense that we have not had sex since we both are not ready for that. However, we have done other things. Last night he fingered me and I have been feeling nauseous all day today. Is this normal? Also his penis did get near my vagina but I do not believe it actually touched the opening of it, it isn’t possible for me to become pregnant right? There was no precum and again have not had sex. I’m also on the pill but haven’t been very active. Please give me advice and help. Thank you.