Help I need some advice lm a first timer

So l think lm pregnant this is my first pregnancy and lm 18 and l think lm pregnant because l missed my period which was supposed to be 20th of January and l have every symptom but every test l but come out very faint should l just get a blood work or should l wait lm about 6 weeks and 2 days ... l have no family doctor so l have ti wait for a walk in doctor lve been taking prenatal vitamins but lm just so scared

Updated: just added some pictures of the tests