Signs of pregnancy?

Ladies I’m so upset, my husband n I have four girls together and trying for a boy I’m 34 yrs old and I have probably taken half a dozen tests just for it to come back negative we tracked the ovulation and everything and according to all my app I should start my period in six days so I took another early test today only for it to co.e back negative…it’s driving me crazy but yet I feel, nauseous in the mornings,more hungry, and bloated but now I’m wondering if it’s all in my head. Has anyone else had any thing similar happen and still end up pregnant