Could I be pregnant

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So I just got the iud in about a month ago. I’ve always been able to feel my strings, but just now I went to feel them and they seemed a lot longer than usual, and if I touch my cervix, I can feel a hard object poking behind it, which I believe is the tip of the iud, I read if this happens and you can feel the tip, your iud may have slipped slightly, and it can become ineffective. Now, my boyfriend and I had unprotected sex this past Sunday and he did cum inside me, it is now Wednesday, and today I began cramping and bleeding, but it doesn’t look like period blood, it looks like tinted pinkish reddish discharge/cum. Could I be pregnant and could this possibly be implantation bleeding?? I need answers !!