Meganik you're thinking of ectopic pregnancy. That's very possible.
How long have you had the symtoms for and tbh if you missed a period you should of took 1 in march but take a test again digital or first response there good tests to take xx good luck and then if it says not pregnant then ask for an ultrasound and buy folic acid as its very important to be taken in pregnancy
A test will come up positive now your period was 4-5months ago beyankah do you have ireglaur periods and has this happen before where you've missed your period and maybe there's something else wrong are you on any birth control or depo or anyother contraceptive like pills or??
I have heard cases like this. Your baby maybe outside the uterus. Sorry,I forgot what is the term called. Ask the doctor for thorough check up.
more and likely if they recently gave you a test and it came up negative your not preggy. you would be far enough along now where your test would be accurate.
Or request your blood be drawn