6 weeks and considering maternity clothes!?!

Abigail β€’ TTC baby #1 Cycle #10 PCOS. Endometriosis. IC. BFP 7/1/19 πŸ‘ΆπŸ» miscarried twins ectopic on 7/17/19 🌈 diagnosed with a unicornuate uterus πŸ¦„

So I am 6 weeks and already having trouble buttoning my pants? Anybody else in the same boat? This is my first pregnancy so I have no idea what to expect! When did you buy your first maternity pants?