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contains buprenorphin and Naloxone, which is used as replacement drug for opioid withdrawal
. Kolonopin is Clonazepam
which is a benzodiazepine
drug and used in a variety of conditions as anti anxiety, as sedative etc. As you are continuously taking these drugs and you are 15 weeks pregnant so the developing fetus is a risk.
Any drug taken by pregnant woman, especially psychoactive drugs, exposes fetus to risk of defects.
So as per my advise kindly visit a gynaec doctor and take opinion, and also undergo USG to find out any damage if any. Good Luck