Confused about contractions

So I'm 38 weeks and have been having contractions since about 35 weeks. They just feel like tightening in my belly and then go away shortly. They are more intense now, but still painless. They are lasting longer than a minute now and happen very frequently. However, they aren't getting any closer together within a short period of time. Are these BH or true contractions? Sometimes I get lower shooting pain but my whole stomach hasn't been painful so far. Help I'm a FTM! Lol.