Please do a home pregnancy
test by yourself. You need not have a PCP for the same. You can do the test by yourself at home. Take an early morning urine sample and do the test by yourself, following the instructions given in the test kit. The kit is available over the counter in most countries.
Your further decisions depend on the test report. You can act accordingly.
A more accurate test will be serum beta HCG
for which you need to go to lab, since your blood will be drawn for the same.
Hope this helps.