it sounds like signs of pregnancy. You should check your cycle shedule, when was your last one, when do u start your next, plus fighure out when you are ovulating too. I never ended up keeping track with any of that so when I found out I ended up being 2 months when I figured it out, had no signs, just didnt keep my period shedule on track. good luck hunn
The pullout method is a really bad method to use.. You should be using birth control or condoms.. Or both.. If you are getting your periods regularly I would say there is a slim slim chance you are pregnant. But there is a chance you are pregnant anytime you have sex so if you dont want to get pregnant I would advise you to get on birth control because like i said before the pullout method is not reliable. feeling nausious could be caused by lots of things.. sore breasts are usually a sign of an upcoming period or maybe they are growing.. depending on your age.. eating more can be a sign of a thyroid problem.. But maybe you just have an increase in appetite.. If you are worried about it take a pregnancy test, that is the only thing that will tell you for sure.