Horrible Headache Implantation??

So I'm on 3dpo but I did an IUI procedure. I have had a horrible headache the last 7 or so hours. I'm wondering if it could be indicating implantation/hormones. I know it's early but since I had the IUI done I thought maybe it would cause implantation to happen earlier since my husband's swimmers were put where they needed to go. Anyone have this symptom during implantation? I'm hoping the headache is a good thing even though it's uncomfortable. I have gotten pregnant with IUI like 4 months ago but that pregnancy ended in miscarriage. I don't recall having a headache but I didn't keep track of symptoms because I honestly thought the IUI wouldn't work. Thanks!