Contractions?

I have no idea what I’m supposed to feel! I suspect I may have been having them for two days now but I’m not sure. What do you guys think? Here are my symptoms:

- period cramps/poopy cramps

- cramping lasts for about 15-20 seconds

- mild nausea

- lethargy throughout the day

Am I experiencing early signs of labor or is this just normal third trimester growing pains? When should I start to become a little more proactive with timing the contractions? My doctor gave me a print out to help with when to go to L&D, but the printout actually isn’t very helpful because it’s not very specific.

Would love some feedback....

I’m 38 weeks and 5 days