Minocycline during early pregnancy

Patient: Hello,I am going crazy with concern. I have been having problems with acne so my dr prescribed me minocycline on the 21st of December and I started it that day. I just found out that I am about 5 weeks pregnant with my first child and I stopped taking the minocycline on the 28th of January. I am pretty certain that I concieved on the 5th of January, so I was on the minocycline for about 3 or r more weeks. I am wondering about the effects of this drug on my baby and what I should do about it….Thanks so muchBre