Cramps after BFP?

Sam

I got my BFP Tuesday and my lines have been getting progressively darker but I’ve noticed a bit of cramping. Is this normal? They’re not like period cramps and they’re not steady just like a pressure that comes and goes. Discharge has been normal and I’m not bleeding at all. Is it just the egg settling in? 🤞

This is my line progression so far. It’s ok right?