idk why I'm not scared when I should be

So me and my boyfriend started fucking and I'm kinda a virgin but he stick it inside me but it was just the tip at least that's what I think he said he did went inside cuz he fucked a lot so he knows what it feels like and it still hurts me because my whole is very tight so he was type inside of me I think he was cuz I felt pressure so I believe he was inside then when he said I'm about to cum and he stick his dick out and cummed quick he said babe u should get the plan b pill and I said buy u didnt cum inside so why should i and he said he knows he cummed inside because before he cums and upon it put it just came out so I went to the bathroom and I didn't feel his cum so today I went and got the morning after pill I didn't told my mom of course so Idk If she will find out about it..... can she find out about it from our insurance? So anyways I took the pill and everything and my head hurt and my stomach hurt ur those are the side affects anybody had a similar situation??? I need advice 😩😩