The big growth spurts are 3 weeks, 6 weeks, 3 months, 6 months and a "sleep disruption" at 9-10 months (where their sleep schedule changes on you)
Your baby could be hitting the 3 month one early, it's based on their due date not delivery date, so if you were late that could be a factor. My DD always hit her growth spurts about 2 weeks early. (I was 11 days overdue with her)
My DD will be 10 weeks tomorrow, and the past few days she's been really fussy too. I thought it was just gas, but she started waking up every 2 hours at night to eat too. I was thinking it was a growth spurt, but she was born on her due date. Maybe she's hitting it early anyway?
Re: When's the next growth spurt after 6 weeks?
The big growth spurts are 3 weeks, 6 weeks, 3 months, 6 months and a "sleep disruption" at 9-10 months (where their sleep schedule changes on you)
Your baby could be hitting the 3 month one early, it's based on their due date not delivery date, so if you were late that could be a factor. My DD always hit her growth spurts about 2 weeks early. (I was 11 days overdue with her)