Should i be concerned haven't had a period since january i feel sick like i have to throw up but don't i also feel bloated and gassy what should i do?

Pregnancy worries?: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result about 3 weeks after sex (3 weeks after conception), or 1 week after missing a period. An Ob-Gyn doctor can evaluate any persistent or worrisome symptoms.