I forgot about the tampon

After a night of drinking I totally forgot I was wearing a tampon. The next day in the evening is when I realised that it has either fallen out in the toilet or has possibly slipped deep inside me- both the things have happened before.

I tried my best to find it inside me, and my date tried his best too. We were both certain it's not there and I haven't felt any discomfort either. Now it's been 2 more days after that. I haven't been to the doctor.

I'm just wondering - is it at all possible for it to slip so deep inside me that it has entered my uterus or something else?

Have any of you been through this? Should I still get it checked? I really don't have the money to go for a consultation right now so I've just been avoiding that! Pls help