Mia period...

My cycle length is usually 28-31

I am now 24-27 days late for my period and Me and my newly fiancé enjoyed each other almost daily before and during my fertile week.

And For some odd reason I’ve been nauseous, dizzy, bloated, gassy, and have tender perky nipples.

the only symptoms I get on and before my period is usually headache and cramps.

Oh and I have taken pregnancy tests (4) but they where all negative.

Should I keep believing the test?

Taking at week 3 of missed period (April 15)