Please help

I don’t really remember much of my first pregnancy (we were told we were going to lose him) so much of it was sleeping and depression and lots of hormones until the birth came along but I believe I might be pregnant now but I can’t remember what I felt like the first time... I’m 4 days late on my period have had sex 15x over the last few weeks even 2x on my ovulation day I have slight nausea and major headaches and I keep getting this anxious feeling in my lower stomach for no reason like I’m at work typing and bam it’s a weird kinda anxious feeling is that normal? I am so terrified of checking like I want it to be positive so bad my husband and I are ready to have another child it’s been quite a while since our sons death but I’m so scared that what if isnt you know? I just can’t talk to anyone I know about this they don’t understand none of them have had to lose a child...