Nurse felt foot during cervix check

Jen • I have 2 boys already! 8 & 4 and now expecting Twin boys!!
Went into L&D today with some contractions.  I'm 33w 5d with twin boys and I had to have 2 terbutaline shots... Ughhh they make my heart race so bad but it was better than when I had them at 24 weeks.  I've been on procardia as well since 24 weeks and and I feel like they're not working anymore.  Long story short I'm only dialated to 1 cm but when the nurse checked my cervix she said she felt baby A's foot.  Just wondering if any one has had this happen to them before and should I be worried?