Is this your first baby?
IME there are TONS of twinges and pinches and ticks and just "feelings" going on down there in the first few weeks. They're all the more noticable when you're looking to feel something, KWIM?
In all honesty, there is nothing you can do right now so when you start to feel worried get a big drink of water, put your feet up, and visualize your happy, healthy baby.
Amy: Certified Professional Midwife and mom to Max (11) and Stella (6).