Really need some advice/reassurance

So.... I will be 5 weeks pregnant with my rainbow baby tomorrow!!!! Yay!!!! Praying this one is a sticky bean!!!!🙏🏻🌈.

But.... I have been having cramps for the past 3 days. On and off. In my lower belly and lower back. JUST like AF cramps. Sometimes when they come they are mild and sometimes they hurt really bad so I run to the bathroom and check my underwear because I’m scared I’ll lose this one too. So far I’ve had NO bleeding or spotting. Just painful/uncomfortable on and off cramps.

The thing is.... my first pregnancy I had barely any cramping (just super super light and it only lasted a few days). The only time I actually felt BAD cramping was when I had my misbarriage and I was passing the baby. But the ones I’m having now aren’t nearly as bad as that.

Soooo.... being the worrier I am. Is this normal???? Should I be worried???? I have an appointment May 7th to check my HCG levels. But I need some reassurance until then. I can’t lose this baby too. I don’t know what I’d do.

😔🙏🏻🌈