Yes
Yes, for some women it can. It is worth talking to your midwife or doctor about it though, because it could be a sign of anaemia. Nausea and dizziness is quite common throughout pregnancy.
being hungry after eating
an breakup or pregnancy or even slight sign of PMS or depression
Yes, but they can also be symptoms of ovulation (releasing an egg). take a pregnancy test if you miss your next period
That is not an immediate sign of pregnancy. It is more a sign of eating badly or worry.
No. If you are pregnant you may eat a lot, but it is not a sign of pregnancy, it is a sign of hunger and/or greed.
Yes they could be
No, I pee all the time after eating popcorn. I'm not pregnant. If you want to know if your pregnant go get a pregnancy test.
Maybe she is depressed, lack of an appetite is a sign of depression in woman. It is also a sign of pregnancy.
No. Not eating at all can be a result of many things. If this is your only symptom I doubt that it is pregnancy related. If you are trying to get pregnant the best you can do for yourself is to EAT properly. If you had unprotecrted sex by accident and now you are late for your period and you have decreased appetite buy a home pregnancy test or see a doctor for a blood test. All the best!
No, a positive pregnancy test is the sign of pregnancy on the IUD.