Tummy aches

Becca
14 weeks today! In the last couple of days I have been getting uncomfortable but not painful aches in my muscles mid way up my stomach.(in line with lowest rib) anyone else had this? How long does it last? 
Lots of sources kept telling me that I would not start to get a bump just yet and there would be little did fence to my shape... It's all lies. I am bumping up and have had to go into maternity jeans already!