Am i crazy???

Me and my boyfriend are expecting im currently 11wls 2 days first time mom. Im 22 my boyfriend is 32 with 4 previous kids. We have been together almpst 3 years but today for some reason my hormones or past feelings of him being unfaithful are coming back to mind & making me act out. Ive caused alot of bullshit today but its almost like subconsciously me testing the limits. Im afraid of him leaving but i just want stability and to feel like im secure in our relationship and normally he does but today ive felt completely alone. He tells me not to stress him out and leave him alone but im not okay with leavin things on a bad note .