Symptoms but neg test today

Heather

We are trying to conceive and have been for about 4 months. I am 11 DPO and my period is supposed to start in 4 days. I have had to pee constantly, have hot flashes, oddly enough my nipples have been erect for a fee days (definitely not normal) and had a few spells of shortness of breath. I took a pregnancy test this am and it says negative. Is it still possibly too early to test, should i still have some hope for this month?