Hello everyone am 23 and having this strange feelings or some weird symptoms I had sex with my bf a day after my period and also the next day that's unprotected sex and he used the withdrawal method my period came yesterday which was normal and now today's flow was so abnormal I have lost appetite

I get so tired with the least thing I do and having some on and off sickness

Never been pregnant before so please help me out

Please I need some answers 😒😒