Late period

So I’m about 4 days late. And now I really have no big deal if I’m pregnant OR not. I’m married, I’m almost 20 and I’m happy, but I took two tests and both were negative.

Now I know some will say “it’s negative you’re fine stop worrying” but let me clarify, my period is NEVER late. I have the WORST periods in the world. I’m usually throwing up, I cannot walk, I cry, I bleed through a super tampon and a super sized pad. And usually I know when my period is coming.

Well I have had NO symptoms of my period. At all.

I’ve been extremely tired lately, moody, and nauseous. Also my acid reflux is CRAZY.

I know when my ovulation was and yes my husband and I did have sex during my ovulation and no we were not protected. (Like I said, I’m married. A baby is okay, it’ll be difficult since we are now not going to see each other for about 6 months #military) (also do not bag on being young and married in the military. I hate seeing poor women get bashed on for being so young and “just meeting their husbands months prior” like no one cares, love who you love. I for one grew up with my husband and have been best friends for 16 years)

But anyway, I’m late. Tests were negative. But something tells me they were wrong. My body just isn’t acting how it should for “not being pregnant”

Any help?? 😊💞