Mine were dissolvable, and i had clear tape over the top, and i noticed when the stitches had actually dissolved (the tape then keeps everything in place, so to speak, until it is ready to come off.
If you're unsure perhaps give your OBGYN a call, or even the hospital and ask them to point you in the right direction. It'll at least put your mind at ease.
All the best xo
.x. Just Me & My Princess .x.