25 weeks today & a little nervous .

FHW

So today I am 25 weeks exactly . I woke up at 6am this morning with the worst cramps that I’ve ever had in my life . After about 30 mins they passed so I got up and went on to work ...I’ve had a few dull cramps through out the day & well I think I lost a piece of my mucus plug . I don’t know if it was a little discharge but it was thick , way thicker than discharge would be . Is it normal to start losing your mucus plug this early ?

And this is my 2nd baby , idk if that changes anything or not