Here's the situation my boyfriend and I have experimented messing around, but never leading into the actual sex. Last week my boyfriend came over and we were cozy and decided to foreplay, at the time I was wearing my underwear no pants and he was wearing jeans and boxers, he fingered me and I jacked him off hot and heavy in the moment my boyfriend ejaculated on my arm and onto the bed. Me freaking out as this never happened before paniced and went out of the room to clean off my arm, though it was clear so I'm sure there wasn't a lot of sperm in it. My boyfriend went to clean it off the bed with a warm wet cloth and dried it off with a towl. After it fully dried we began to mess around again and dry hump a reminder that we did this with me wearing panties as he wore his jeans and boxers.
This recent monday my nipples began to feel sore especially my left one. Though this never happens unless I'm gonna start my period, but I'm curious why I'm having these symptoms since it was barely the end of July does this happen to any one else. I have had my period in july in the beginning most specifically the 8th.Later that monday I began to feel nauseous every now and then , my appetite has changed and I haven't been hungry as much as I used to be. Additional info is that I work out regulary every tuesday and thursday for an hour lately we have been doing some stomach excercises to tone the stomach, could this also be reason. Or could it be what my boyfriend and I did last week making me feel this way? or it's my imagination causing me to worry. Cause usually when I do sexually active things my mind tends to lead to "omg I'm pregnant". Please help me I'm really worried.