9 weeks stomach muscles sore?

Sarah-Jane • TTC 16 months💏We did it🤰🏽Sophie born 10/7/18💕

I was pregnant 10 years ago so can’t remember a thing 😳 I’m only 9 weeks but my lower tummy muscles were aching last night, it must have woke me up, like they are tight (haven’t really done any exercise so I’m sure it’s not that)

I know your tummy stretches but is this early normal? I worry about everything!