Unsure. could I be pregnant?

I usually get my period at the beginning of the month and glow is pretty close couple days off. but I am 11 days past expected period. I've been feeling a little nauseous in the evenings. I am waking up during the night to go pee and which is unusual for me. I have IBS-D so It is very unusual for me to be constipated and I've been for the last 2 weeks. i am bloated almost constantly. and constantly wanting to eat.. I've taken 2 pregnancy test a week ago and again this past monday. both negative..

I don't know if I should take another test..